Liquids Definition and 198 Threads

1. Homework Statement You are given two cans to roll down a 1m ramp at angle 15 degrees [and then at 30 degrees for a check]. Can A has a less viscous fluid, broth. Can B has a more viscous fluid, cream of mushroom soup. Now through constant experimentation we find that, can B rolls down...

Homework Statement You are given two cans to roll down a 1m ramp at angle 15 degrees [and then at 30 degrees for a check]. Can A has a less viscous fluid, broth. Can B has a more viscous fluid, cream of mushroom soup. Now through constant experimentation we find that, can B rolls down...

I'm going to fill a big container (3500 litres) with water. I'll use water from a hose, and boiled water, and I want to hit 40 degrees celcius. Now, I figured that this was straight forward, Temperature in hose = 10 C Temperature of boiled water = 100 C ( 100 * X + (3500 - X) * 10 ) /...

I was having a glass of wine over candlelight and I noticed that the liquid wax was completely transparent but turned opaque when when the wax solidified. Why does this happen? Clearly, when the molecules reorganize during the freezing phase transition they begin to interact with the light. What...

Homework Statement A 2.04 kg piece of wood floats on water of density 1006.2 kg/m3. If the density of wood is 486.0 kg/m3 and the density of lead is 11300 kg/m3, what minimum mass of lead, hung from it by a string, will cause it to sink? Homework Equations Bouyant force= (density of...

I know solid materials are formed by chemical bonds. There are crystalized or amorphous, but the bonds are fixed. How about in liquids?

sorry to ask this stupid question... can anyone tell me exactly the difference between liquid and gas based on kinetic model? most textbooks give that in liquids inter molecular spaces are lesser than gases ,etc & etc but if compress the gas to much ,still it doesn't get converted into...

Homework Statement (Please refer to the attachment given) In the figure shown, the heavy cylinder (radius R) resting on a smooth surface separates two liquids of densities 2\rho and 3\rho . The height h for the equilibrium of cylinder must be: a) \frac{3R}{2} b) R...

I am looking for a liquid with a high expansion coefficient. This liquid should act as a working fluid in a energy cycle based on a system where the working fluid does not change phase from liquid to gas. So far I have found pentane as the most suitable liquid - but I would like to know if...

Hi, I have a tricky question, and was hoping somebody could explain to me how I would go about solving it. Here it is: Oil having a density of 930 kg/m3 floats on water. A rectangular block of wood 4.00 cm high and with a density of 960 kg/m3 floats partly in the oil and partly in the...

Hi, i am doing a project where i need to get non conducting liquids, So far i understand Vegetable oil, mineral oil are non conductive, What other liquids are non conductive ? Thanks very much

And if so, is this inertia directly proportional to its viscosity? Can gases have inertia?

I'm working on a project and right now my idea fluid is to use Gallium, a liquid metal. Only major issue is its currently about $1000 USD for 1kg of this stuff!So I can't afford gallium. Mercury isn't that cheap either and its a bit dangerous if not handled properly. What about other fluids...

I've heard of non-Newtonian liquids (and seen them on tv for entertainment value). I also hear that they keep referring to it as a material that changes its viscosity, and so turns from a liquid to a solid. However, I would never look at such a liquid and think of it in that way. What I see is...

I don't know if classical physics is the best place to put this, cause normally i would have put it in the engineering section. There is no governing equation right now to describe heat flow between 2 liquids? another question: flow between 2 liquids is governed by convection, if we place an...

My chemistry textbook tries to explain the properties of solids and liquids with the kinetic theory. Is this not good? Should only gases be explained by the kinetic theory since one of the postulates in this theory is that particles exert no forces on each other. The book had to disable this...

I've had a vague idea for some a new type of video display for a while now. it consists of a thin liquid layer, sort of like liquid crystal i guess, with an array of controllable heating elements behind it. A video signal would be translated into a matrix of temperature levels for these...

For the random walk approach to gases, liquids, or solids, why isn't there a gradient? The atoms don't jump by themselves, right? They should have to feel forces to jump...

Any help would be appreciated - The water flowing through a 1.9 cm (inside diameter) pipe flows out through three 1.3 cm pipes. (a) If the flow rates in the three smaller pipes are 28, 15, and 10 L/min, what is the flow rate in the 1.9 cm pipe? The basic continuity idea is A1v1 = A2v2...

Sir, Please help me with this problem. # A vertical column of liquid 50 cm long at 50 degree Celsius balances another column of same liquid 60 cm long at 100 degree Celsius. What is the coefficient of absolute expansion of the liquid? I solved it in the following way: Pressure exerted...

exam question... Equal masses of two liquids of density P and 2P are mixed together thoroughly. Whats the density of the mixture provided the total volume remains constant? 1.4p/3 2. 3p/2 3. 3p 4.5p/3 im getting 4p/3...:frown: is that correct?

I need to pump a refrigerant in its liquid state (from low to high pressure), and I am wondering if a normal rerfrigerator compressor is capable of doing this. I don't know the internal specifics; if it somehow depends on the compressability of the fluid it's pumping. I would prefer to use one...

What is the structure of the liquids??isn't there any way by which we can differentiate between structure of liquids...And above all what is that "thing" present between individual atoms in liquid state? All these questions arose while studying phase diagrams...because we had FCC,BCC(etc.) for...

I am having a lot of trouble with these types of problems.. this one is on a homework assignment and i don't know where to begin. heres the problem : The sepcific heat of lead is 31.0 calories per kilogram per Celsius degree. (a) Find the heat necessary to raise the temperature of 1.30 kg of...

Ok, I have been going through my chemistry notes on molecular geometry...and I don't understand the following: In my notes it says that -"as pressure goes up, so does the boiling point" -"High vapour pressure means weak attractive force between the molecules and low vapour pressure means...

hello, i need to know about the viscosity of liquids i.e. the science behind it. most websites i looked into did not help at all! also, i am doing an experiment based on the viscosity of liquids and have five liquids to choose from : honey, olive oil, ethanol, water, and corn syrup. please...

Hello all, This is my first post here. My apologies if this is in the wrong place. I'm building an electrolysis device using potassium hydroxide (KOH) as the electrolyte and I don't know the formula for determining the correct percentages. I'm trying to dilute caustic potash from 45% KOH &...

pressure vs speed for liquids ? :( Think of a pipe positioned horizontally. Some fluid is flowing from left to right.(e.g. water) Right side of the pipe is well narrower than left side. Is the speed of a fluid particle at the right greater than the speed of a particle at the left...

For your thoughts... a theory of mine... A Method by which shape shifting strings may explain: 1. Plasma 2. Hydrogen 3. Helium 4. Neutrons 5. Gasses 6. Liquids 7. Solids Consider the following: If a string, was a string, in shape, in only one STATE of its existence, then one...

I have always wondered why liquids of different densities don't mix up if put together with caution. As if you have a glass halffilled with cold water, you can with caution add another layer of warm water above the cold. You will see a clear boundry between the layers. Is this something with...

After esterification, can the ester be separated from other liquids using fractional distillation?

Hello I did an experiment and here are my results. Observations Liquid Depth of vortex Time Paint thinner 2 lines (2.0 cm) 4 seconds Oil 1 line ( 1.0 cm) 2 seconds Water 3 lines ( 3.0 cm) 8 seconds Questions 1. Based on the results from the experiment I would say that paint...

Hello. I just wanted to know if a material in the LIQUID state has a higher thermal conductivity than the same material in the SOLID state. I am thinking specifically about the metals, but I suppose it should be the same for non-metals (or not?).

i want to know Why sometimes is it more accurate to weigh liquids than to use a graduated cylinder to measure them??

I was just curious... what are ways for liquids to evaporate and end up as gasses? (Apart from increasing the temperature)

1) Nonpolar liquids are dangerous? How? What are some harmful nonpolar substances--how is nonpolarity harmful? I mean, why exactly? 2) Is it true that pure distilled water is harmful to drink? I mean pure, without impurities--just pure H2O; it seems safe, but is it really harmful? What will...

I took Honors Chemistry this year with the assumption I might actually get some good questions answered, but alas, no such luck. When we went over different stages of matter, the teacher used those little diagrams I'm sure you've all seen to describe how solids, liquids and gasses differ. The...

Hi, I have a problem that talk about the behavior of two liquids in contact and a boundary that appears between them. I am lack of theory about this situation do anyone of you could help me to find some paper of articles that talk about this? Thank you, Aron

In the past experiments have been done with breathing liquids. Rats did survive up to 20 hours while breathing perfluorocarbons. What is the current status on this? Has it already been tested on people? Or are there major problems?

I have a transparent silicone model flow chamber which I would like to use for flow visualisation studies. Ideally I would like a fluid whose refractive index is the same as the silicone, hence minimising distortion of the field of view. The refractive index of the silicone model is approx 1.4...

For a physics project I've decided to investigate factors affecting the flow rate of liquids. One of the factors I'm investigating is how an increase in liquid in a container will induce greater pressure and hence increase the flow rate. I need a theoretical link for the data I obtain for this...

I am a student from UIC that has begun working on a side project. With a few of my friends we have tried to figure out the physics behind funnels with a tube coming down with liquids in them. Something like this: \_/ || || We have not gotten far but believe an integral to find the...

I'd like to know if there's any law/formula that allows you to calculate the evaporation speed of a liquid at a precise temperature, pressure, with a precise surface. Which physical parameters of the substance should i know? Thank You! Ciao! Andrea

For my A level coursework I have to come up with and carry out an experiment. I have chosen to investigate the speed of waves in liquids. I plan to use a ripple tank, set to create waves of a certain frequency, which I will vary. I will measure the wavelength and use the equation v =...

There are certain types of flammable liquids which cannot be put out by water easily, i know of one, rocket fuel. but there are certain like components which make the fire worse? what are they? components which like when added with water make it worse.

I know it's the kinetic energy (temp.) of the molecules that controls evaporation. Just wondering what causes some liquids to evaporate more quickly than others at the same room temp... for example gasoline?

What do you all think about this? Pretty strange! http://www.news.com.au/common/story_page/0,4057,6674628 ^13762,00.html

can't an electro-magnetic field be used to separate two liquids? For example: petrol and water(as they have different magnetic properties) i'd be grateful if someone helps me with this.