Container Definition and 347 Threads

A container is any receptacle or enclosure for holding a product used in storage, packaging, and transportation, including shipping.
Things kept inside of a container are protected by being inside of its structure. The term is most frequently applied to devices made from materials that are durable and are usually at least partly rigid.
A container can also be considered as a basic tool, consisting of any device creating a partially or fully enclosed space that can be used to contain, store, and transport objects or materials.

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  1. J

    What is the Optimum Thickness for a Thermal Container Design?

    Hello everyone, first of all, thank you very much for reading. I have to design a container (100 mm of height and 80 mm of interior radius of XPS) to keep a cryogenic mix (water and salt ice) at -15ºC at least for 40min. And my problem is to calculate the optimum thickness of XPS. I've been...
  2. hubot

    Feynman exercise - container with steel balls

    Homework Statement You received many steel balls of the same diameter d and container of known volume V. All dimensions of the container are much greater than balls diameter. How many balls can be placed in a container? Homework Equations (\frac{4}{3}\pi)(\frac{d^3}{8})\approx0,52d^3 The...
  3. S

    Impact of container on final temperature of system

    Homework Statement A container contains a given mass of ice and a given mass of water both at 0 degrees Celsius. A given mass of aluminum is heated up to some temperature and submerged in the water-ice mixture. No heat enters or leaves the container. Given the specific heat of water and...
  4. Z

    Pressure exerted by a liquid on its container

    For an individual project I'm working on, I've been trying to work out what the tensile strength would need to be for a spherical container to hold a given volume and density of liquid. The specific values are given below, but a general formula would be useful too. Mass of liquid: 2 660 000kg...
  5. takgt7

    Calculating the volume in closed container?

    Hi, I have a hard time calculating volume in a closed container. Let's say, I have a flask with a volume 0.125ml, which is closed, and the pressure inside is 16.87kPa with temperature 294.7k and I did some reaction to create a gas inside the flask. The new pressure in the flask is 87.19kPa and...
  6. L

    Need ideas for high temperature sealed container.

    For my bachelor project, I am in need of an air tight (or very, very near air tight) container, which can withstand 750 C. My original thought was to have a steel container with a lid and gasket, but I was unable to find any gaskets that got anywhere near that. Does anyone know of a gasket...
  7. N

    Calculating N2O4 Reaction Rate in 4L Container

    Homework Statement N2O4 --------------> NO2 N2O4 for k = 0.050 s-1 The process starts from 0.20 mole of N2O4 in a container of 4.0L. Calculate v for N2O4. if 3/4 of the N2O4 is converted Homework Equations To calculate concentration c= mole/L The Attempt at a Solution 0.20 mole /4.0 L...
  8. I

    How does a vacuum pump push gas out of a container?

    Precisely how does a vacuum pump take the gas, let's just assume air, out of a container?
  9. David Brill

    Is the Universe Empty? Exploring the Concept of Empty Space-Time

    Does it make sense to think of our universe as a "container" of matter and energy? If so, is there some minimal content?
  10. jdawg

    Energy Balance for closed rigid container

    Homework Statement Water, initially saturated vapor at 4 bar, fills a closed, rigid container, The water is heated until its temperature is 400C. For the water, determine the heat transfer in KJ per kg of water . Homework EquationsThe Attempt at a Solution Assume potential and kinetic...
  11. ollien

    Why does pressure not depend on the shape of the container?

    Hey there. I'm trying having a bit of trouble wrapping my head around this. Homework Statement That pressure is equal at all the same height no matter the shape of the container. Homework Equations P = \frac{F}{A} P = ρgh The Attempt at a Solution I'm trying to understand this from my...
  12. S

    Pressure exerted by a fluid in a closed container

    When a hole is made in the side of the container holding water, water flows out and follows a parabolic trajectory. If the container is dropped in free fall, what will happen to the water flow? I think that the water flow will follow a similar trajectory..what effect can gravity have on it? it...
  13. I

    Decrease in temperature and pressure of closed container

    Homework Statement Helium is stored in a tank initially at temperature To and pressure Po. It starts coming out through an opening (pipe outlet) at a constant mass flow rate of mdot. Calculate the decrease in temperature and pressure of the tank (assuming no heat loss to the surroundings) as a...
  14. bartekac

    How does angular velocity affect the density of water in a rotating container?

    Hi, I was recently thinking about a problem which I have no idea how to solve. A full water container with volume V is hanged on a rope with length L (mass of the rope is negligible). It then starts to revolute around the point where the rope is hooked (circular motion, circle with radius L)...
  15. Ryan Reed

    Why Does Density Affect the Density of its Container?

    I've never been able to figure this out. I can understand when you put oil in water that one floats on top of the other, but why does it still work if I put it into a balloon? Something that keeps it from directly interacting with the medium it's in?
  16. P

    Strength of container for vacuum freeze drying

    I have read that freeze drying is the best way to salvage wet books (http://www.ccaha.org/uploads/media_items/technical-bulletin-salvaging-books.original.pdf). However, freeze dryers run in the thousands of dollars, and I don't know anyone who has one I can borrow. Solution: make my own! I...
  17. J

    Pressure inside a sealed container

    Hi I am trying to calculate the pressure in a vessel of 5ml that contains 1ml water while the rest can be considered as air. I would like to know the pressure at temperatures of 20C, 80C and 120C I have a feeling its something to do with vapour pressure, and the ideal gas law but can't seem...
  18. Jehannum

    I need a method of estimating the volume of a gas container

    In the gas industry you often need to know the installation volume of a system, i.e. the amount of gas it contains in the pipework, fitting and meters. If part of the installation is buried or inaccessible this is difficult to estimate. My concept is to estimate installation volume by...
  19. M

    A container holds 8.0kg of water at 25degC....

    Homework Statement how much energy must be added to the water to create 2.0 kg of steam? Homework EquationsThe Attempt at a Solution I have no idea how I am supposed to figure the answer out. what formulas do I use?
  20. L

    RF radiation out of closed steel container

    Suppose you have an RF generator feeding a vacuum system with argon ionized by that RF. With the tuner you see the VSWR is very good. That is version A, no ground or poor ground. Version B is the same thing, the container is stainless steel half inch thick to hold the vacuum. But in this case...
  21. P

    Temperature of a gas in a container

    A rectangular (simplified) container with rigid surfaces, has a certain mass of ideal gas within it, and it accelerates in free space, undergoing rectilinear motion. There are no dissipative forces. Now, since the container moves, its kinetic energy increases, and since the temperature of the...
  22. R

    A heating element in a container with low pressure gas?

    This is just a qualitative question but feel free to show an equation if possible. Basically if you have a container with a heating element, let's say 500 W with a temperature of 2500 Kelvins and inside this box is a low pressure ideal gas, something like 1/100 of an atmosphere. Also imagine...
  23. squelch

    Pressure of a fluid contained in a steel container

    Homework Statement A steel container is completely filled with gasoline, and then sealed. The temperature is then increased 11 degrees C. If the bulk modulus of gasoline is 1.90 \times {10^9}Pa, find the increase in pressure of the gasoline if: (a) The expansion of the container is considered...
  24. R

    What is the Ideal Gas Force on a Container at Temperature T?

    Homework Statement In an ideal gas at temperature T, the average force that a molecule applies on the walls of a closed container depends on T as Tq. A good estimate for q is: A. 2 B. 1 C. 1/2 D. 1/4 Homework Equations PV= nRT I think, Volume of container and moles are constant. So P ∝ T The...
  25. davidbenari

    Why isn't the nature of the container mentioned in thermo?

    This question has been bugging me for long. Specifically I'm wondering about it in the context of Pressure-Tempreature phase diagrams. With these diagrams you can deduce stuff like the Clausius-Clapeyron equation and stuff like that. But certain things confuse me, e.g.: There is this mental...
  26. R

    Pressure in a container placed on a reduced area?

    Really simple question but it's been making me a little confused. Lets imagine we have a container (cubic with length of 1 meter) with a pressure of 1 Pascal and then an area inside the container of 1 mm^2 is chosen to measure the force on that area, what would the pressure be? 1 Pascal or...
  27. R

    Container stack height on a ship: Mechanical strength

    In the photo of a container ship cargo seems stacked 12 high. I do know that there's lateral supports etc. that are not visible in the figure, yet the vertical load, isn't that transferred downwards to the bottom container? Or is there some way to support the stack at an intermediate point so...
  28. Davephaelon

    Transferring Liquid Helium to Another Container

    I have a small 'cryostat' which I would like to fill with liquid helium to conduct an experiment. It consists of a circular plastic kitchen measuring cup 3 inches wide at the top, 2 and 1/4 inches wide at the bottom, which is flat, and 1 and 1/2 inches deep. The plastic wall/floor is about...
  29. G

    Why does plastic container slides off at the same speed?

    Homework Statement Two small cylindrical plastic containers with flat bottoms are placed on a turntable that has a smooth flat surface. Canister A is empty; canister B contains lead shot. Each canister is the same distance r from the center. The coefficient of static friction between the...
  30. 0

    Getting cold water into pressurized hot water container

    How can this be done? So there is a container with hot water, and it's highly pressurized. It also has an output potential with a pressure reducing valve. I'm trying to workout how to feed the pressurized container with colder water (to refill). My first thought was that maybe when pressure...
  31. Hang11

    Modeling boiling in a closed container with a small hole

    I'm trying to build a mathematical model of something like Heron's Aeolipile: http://en.wikipedia.org/wiki/Aeolipile I'd like to know, based on a known heat flux, the pressure and temperature attained in the container. I assume as water boils, the control volume loses mass and energy, the...
  32. V

    Solving a Container Pressure Problem

    Homework Statement A closed container has a pressure P2 inside it. Outside there is the pressure P1 with P2 > P1. A pipe is enrolled on the grey disk. The pipe has a mass. The grey disk can rotate around itself. http://imageshack.com/a/img905/3235/Egzdk8.png 1/ Draw all forces with P1=0 2/...
  33. G

    Calculating final temperature in insulated container

    Homework Statement 0.60kg of ice at O degrees C, 2.0 kg of water at 0 degrees 0 degrees, 3kg of iron at 325 degrees C are place in a sealed and insulated container. The specific heat for iron is c=400J/kg degree C, for water is c=4200J/kgdegree, for water is c=4200J/kgdegree celcius, for ice is...
  34. gracy

    Vapor pressure in open container

    Vapor pressure in closed container is well understood by me.But in closed vessel ,it is a nightmare for me.However, in an open container (e.g. pot on a stove) equilibrium cannot be reached due to the vapor being dispersed into the atmosphere .The definition of boiling is when vapor pressure...
  35. S

    How to describe motion of the wall of a liquid container?

    Hi, I wonder I cannot solve the following simple problem. I really don't know what kind of equations are relevant. Imagine a rectangular tank, with vertical walls containing some water. The surface area is big. The wall of the tank is movable without friction, and its mass is negligible. All...
  36. K

    How much oxygen escaped from the container?

    Homework Statement Into a 56[liter] container oxigen is filled in with manometric pressure of 4[atm] and temp' 470C. what is the mass. Then a leak happens and the pressure drops to 3.5[atm] and temp' 270C. How much oxigen escaped. Homework Equations $$PV=nRT$$ $$R\left[\frac{liter\cdot...
  37. M

    Forces on a rod through a pressurized container

    Hi! A colleague and I were discussing pressures and forces when we arrived at a special situation where we do not fully agree and would like some help to better our understanding. Imagine a box/container with a hole in the middle of two of the opposite sides. A rod/cylinder goes fully through...
  38. C

    Does a static container apply a torque on Earth ?

    Homework Statement Does that container full of water gives a torque on Earth ? http://imageshack.com/a/img537/6733/9Y0Hqq.png Homework Equations -- The Attempt at a Solution I drawn all interesting forces : http://imageshack.com/a/img540/9315/ymwwvW.png Like that there is a torque...
  39. R

    Pressure caused by explosion in closed container

    Homework Statement (C2H4NO6, EGDN) is an explosive with perfect attributes. We fill 20% of a sealed container with an EGDN. Assume that EGDN explodes and the created gas bahaves according to ideal gas law. What is the excess pressure in the sealed container? My problem: I don't know where to...
  40. K

    Thermodynamics: Stiff and isolated container

    Homework Statement A stiff and isolated vessel contains oxygen and hydrogen. a spark is made and explosion occurs. temperature and pressure rise high. apply the first law. Homework Equations The first law: ##Q=U_2-U_1+W## The Attempt at a Solution Is the heat generated in the explosion...
  41. K

    Heat exchange for an isolated container

    Short version: If I have an insulated container(box) of some specific size. The inside temperature is temperature X. Ambient temperature is Y. Also X < Y. The box starts warming up. I log the inside temperature over time with data points. How can I determine one or more of the following based...
  42. R

    Calculate the speed with which a gas escapes from a container?

    Hi guys, (I apologize if I'm wrong here, and I apologize for my bad English but I'm Italian): if I have two container, where: container "A" (there is "He" with a pressure of 2 atm); container "B" (remember "O2" with a pressure of 1 atm). 1) you tell me which formula to use to calculate the speed...
  43. E

    Max Height of Water in a Container with 0.1mm Hole: Solving h

    Homework Statement A container has a round hole at the bottom. The diameter of the hole is 0.1 mm. The container is filled with water. The maximum height (in m) up to which whiter can be filled without leakage is h/10. Find h. Surface tension= 75 * 10^-3 N/m Homework Equations Pgh*A=F(of...
  44. B

    Object is added to a water filled container, what is the change of pressure

    Here is the concept I'm struggling to understand: There is a tank filled completely filled with water. If an object is teleported into the tank (not replacing the water but just displacing the water) what is the pressure change. Volume of tank given Volume of object given So I understand that...
  45. W

    Pressure inside sealed container

    Hi all : ) I have a basic physics question: Let's say I have a sealed metal cylinder with a volume of 1L. It contains 1/3 air and 2/3 water. I heat the container from 20C to 140C. How can I determine the change in pressure or final pressure? I guess I can calculate the pressure change of the...
  46. T

    Calculating Heat Transfer (Thermal Radiation) to a Shipping Container

    Hello, I am trying to calculate the thermal radiation heat transfer to a shipping container which would be painted white. The purpose is to size an air conditioner for equipment, not living conditions. I have already calculated heat from the other sources. The desired internal temperature is...
  47. M

    MHB Rate of change when filling container

    The ans is 4. Could someone please help..thanks in advance. :)
  48. S

    Leak from a container w/ a bellow and air bubble

    Hey guys! I'm doing a project and having a tough time deriving the equations to model it (Matlab (ODE/PDE) or Excel (cell/dv/dt)). I would love some insight/help etc! To start off there's a sealed rigid container which has a bellow attached internally and a valve. The inside of the bellow...
  49. TheTank

    Fluid mechanics -- fluid in a container moving down an incline

    I have added a picture of the problem with an attempt for a solution. Please let me know if its right or wrong, and what I have done wrong if its wrong..
  50. P

    Measuring the internal pressure of a sealed container

    hey everyone, I am a chemistry student and i am currently working on my final year project, which is to find a chemical difference between canned and bottled coke. one of the aspects I am looking at is CO2 content, so i need a way of measuring the quantity of CO2 in a container. ideally i want...
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