Molecular Physics | Thermodynamics Answers

What does the ideal gas law predict about the volume of a sample of gas at absolute zero? Hence explain why is this prediction is incorrect?

A cylinder with a piston holds 0.50 m^3 of oxygen at an absolute pressure of 4.0 atm. The piston is pulled outward, increasing the volume of the gas until the pressure drops to 1.0 atm. If the temperature stays constant, what new volume does the gas occupy?

If the volume of an ideal gas is doubled while its temperature is quadrupled, does the pressure
(a) remain the same
(b) decreases by a factor of 2
(c) decrease by a factor of 4
(d) Increase by a factor of 2
(e) increase by a factor of 4

When a certain gas under a pressure of 5.00 x 10^6 Pa at 25.08 oC is allowed to expand to 3.00 times its original volume, its final pressure is 1.07 x 10^6 Pa. What is its final temperature?

State the assumptions that are made in the kinetic theory of gases and derive an expression for the pressure exerted by a gas which conforms to these assumptions, in terms of density and the root mean square velocity of its molecles

Assuming the density of nitrogen at s.t.p to be 1.251 kgm^-3, find the root mean square velocity of nitrogen molecules at 127 oC.

Use the concepts of the elementary kinetic theory of gases to derive an expression for the root mean square velocity of the molecules of a gas(Nitrogen) in terms of the pressure and density of the nitrogen gas.

Explain what is mearnt by the root mean square velocity of the molecules of a gas.

State Boyle's law and Charles' law and show how they may be combined to give the equation of state of an ideal gas.