Questions tagged [ideal-gas-behavior]

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Ideal Gas Equation Extreme Case [closed]

I have recently learned about the Ideal Gas Equation and I have this doubt.....suppose I am in a closed container filled with a gas of fixed volume and definite amount of moles. I am assuming myself ...
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2answers
82 views

Why does CO2 diffuse out of a cylinder in the absence of a pressure difference?

Suppose I have a thermally insulated cylinder containing carbon dioxide (assuming it is ideal) at 1 atm pressure(atmospheric pressure is 1 atm). Now let's consider two cases: CASE-1: I cut open the ...
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2answers
176 views

Compressibility factor and deviation from ideality

Consider these statements : At Boyle point, real gases show ideal behaviour. Above the Boyle point, real gases show positive deviation from ideality (forces of attraction between the particles are ...
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1answer
68 views

Confusion in solubility expressions in Henry's Law

While reading about Henry's law and solubility I frequently come across two relations: $C = k_{h}P$ (c = concentration of a dissolved gas) $P = k_{h}x$ (x = solubility/mole_fraction) What is the ...
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1answer
96 views

Volume of ideal gas molecule [closed]

Is there any reason as to why we assume the volume of ideal gas to be negligible in comparison to the container? What is the underlying reason to assume that the ideal gas molecules are point ...
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1answer
35 views

Consider difference of pressures as weight of piston [closed]

Let us say there is a container with two ideal gases in it divided by a piston.Volume of ideal below the piston is 2L and above is 8L.Total volume of container is 10L. n of both is 1 mole and T is 300 ...
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0answers
77 views

Volume of compressed helium gas needed for FE test on ball valves

I'm currently doing a case study to find out the exact volume of helium gas required for FE tests on ball valves regards to the valves' volume and pressure class and the number of helium tanks needed ...
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2answers
998 views

Under what conditions does Real Gases show Ideal Behaviour? [closed]

MY textbook says : Real gases show Ideal Behavior under low pressure ,high temperature. So I wanted to know what happens to real gases at high pressure ,low pressure Do they also show ideal behavior ...
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1answer
128 views

Specific Heat Ratio for a perfect gas mixture

I am reading Rocket Propulsion Elements by George P. Sutton & Oscar Biblarz, 9th Edition. In the fifth chapter, I was introduce to the specific heat ratio k for the perfect gas mixture, Eq. 5-7. ...
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0answers
82 views

Can we use PV^y = constant equation for irreversible adiabatic processes?

Example: One mole of monoatomic gas expands at initial temperature $T$ at constant external pressure of $\pu{1atm}$ from $\pu{1L}$ to $\pu{2L}$. To find final temperature, why can't we use $PV^y$ or $...
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1answer
718 views

What gas law is involved when your ears "pop" when you are on a plane high in the air? [closed]

When you are up in the air, the air pressure decreases and the altitude increases. What gas law is involved in the situation wherein your ears "pop" because of the difference in pressure.
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0answers
70 views

Calculating force and pressure of an ideal gas on a wall [duplicate]

The text below is from a discussion on ideal gases and the kinetic theory of gases: After the collision the molecule must travel a distance $l$ to the opposite wall, and then back across this same ...
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3answers
5k views

Among hydrogen, helium and carbon dioxide, which gas would behave most like ideal gas and why? [closed]

I was wondering which gas would behave most ideally out of $\ce{H2},$ $\ce{He},$ $\ce{CO2}.$ All gasses are in the same condition. I know the answer is either $\ce{H2}$ or $\ce{He}$ because of London ...