Gas expansion Definition and 69 Threads

Hi you all Seaching in internet, I have not found an answer to this: In a air-gasoline stechiometric mixture, what can be the volumen relationship between the unburned (intake gas) and final exhaust gases?. I guess temperature is important, but let's consider a normal working...

Homework Statement Could someone help me calculate the rate of expansion of gas (helium or hydrogen) in a balloon at different altitudes. temperature is -30f at all altitudes http://www.engineeringtoolbox.com/air-altitude-pressure-d_462.html <- chart for air pressure Homework...

Homework Statement The problem states: Two small containers of equal volume, 100 cm^3, each contain helium gas at 0 degrees C and 1.00 atm pressure. The two containers are joined by a small open tube of negligible volume, allowing gas to flow from one container to the other. What common...

Hi, i think I've got the first part of this question done but I am stuck with the rest, so i'll post the lot in case you think i have the first part wrong. a) Derive and expression for the work done by an ideal gas when it expands isothermally at temperature T from a volume V1 to V2. b)...

1.1 kg off air with pressure 10^6 Pa, temperature 125 celciusdegrees, gets to expand until the volume is five times bigger than in the beginning. In every moment of the expansion, the amount of (warmth energy = Q) contributed is one fourth of the work done by the gas. 1 kmol of air weighs about...

Hi All, How to work out the expansion ratio of a gas fireball. Eg: Just say we have a ball of gas-- no container, 1 liter in volume suspended in mid air & we ignite it, how far would the flame front extend to form the fireball, what volume would it occupy once ignited?. An example of...

Homework Statement one mole of a monatomic gas expands from V_i = V_0 to V_f = 3V_0 according to the relationship: p = P_0[1 - 0.9sin( (pi(V - V_0))/4V_0 )] a) compute the work done by the gas as it expands from V_i = V_0 to V_f = 3V_0 b) compute the net heat flow during this expansion c)...

I have been working on a series of questions dealing with gas expansion and temperature change for my PE exam. \frac{}{}

I am in high school chemistry and we are learning about gases. Do gases expand indefinitely? Or at least until the gas is evenly distributed throughout all the other gases that are present?

Homework Statement Imagine some helium in a cylinder with an initial volume of 1 liter and an initial pressure of 1 atm. Somehow the helium is made to expand to a final volume of 3 liters, in such a way that its pressure rises in direct proportion to its volume. (a) Sketch a graph of...

Hi, Apart from heat and number of moles, what dictates how much a gas will expand when exposed to heat. Is it density? The density of Xenon is 5.894 g/L and the density of Helium is 0.1786 g/L does this mean that if they were both in the same conditions of volume of container, number of...

Hi, Ive a couple of questions. 1) Ideal gases expand according to temperature. But how quickly does it take for it to expand to its destined size? Lets say if I had 100 moles of Argon and heated it to 373kelvins. How long would it take for it to expand to it final size? 2) To what...

Aren't we doing some work to prevent the gas from expanding if we maintain the constant volume. So shouldn't molar specific heat at constant pressure be equal to constant volume?

Here's the Question: In a Classroom there are 50 rows of students. A container of N20 (laughing gas) was opened at the front row and tear gas (molar mass 240 gm/mole) was opened simultaneously at the rear of the room. Which row of students will be the first to be laughing with tears in their...

an air rifle shoots a lead pellet by allowing high pressure gas to expand. This happens quickly so it is an adiabatic process. initially 12 cubic centimeters of air are admitted to the barrel. It behaves as an ideal gas, \gamma = 1.40. The air expands behind a 1.1 g pellet and pushes on it as...

An ideal gas at pressure, volume, and temp, Po, Vo, and To, respectively, is heated to point A, allowed to expand to point B also at A's temperature 2To, and then returned to the original condition. The internal energy increases by 3PoVo/2 going from point B to point To. How much heat left the...

Calculate the work W done by the gas during the isothermal expansion (path C). It may be be convenient to generalize your results by using the variable R_v, which is the ratio of final to initial volumes (equal to 4 for the expansions shown in the figure.) Express W in terms of p_0, V_0, and...

can anyone give me an equation for the rate that an ideal gas expands in a temperature change. like when a gas goes from 30 degrees to 50 degrees in a baloon. how quickly would it expand?

I am doing a physics problem in my High School class and I cannot find the answer to this: How much does water expand when changing from a liquid to a solid. Is there a percent? Example, when a gallon of water fully evaporates how much space does the vapor take up? Thanks alot!