A litre of hydrogen at `27^@C` and `10^5 Nm^-2` pressure expand isothermally until its volume is doubled and then adiabatically until its volume is redoubled. Find the final pressure of the gas. 1(gamma = 1.4)`

A volume of gas at atmospheric pressure is compressed adiabatically to half its original volume. Calculate the resulting pressure (gamma = 1.4)

An ideal gas with pressure P, volume V and temperature T is expanded isothermally to a volume 2V and a final pressure P_i , If the same gas is expanded adiabatically to a volume 2V and a final pressure P_alpha find the value of ratio P_alpha/P_i . The ratio of the specific heats for the gas is 1.67.

10 litre of a non linear polyatomic ideal gas at 127^(@)C and 2 atm pressure is suddenly released to 1 atm pressure and the gas expanded adiabatically against constant external pressure. The final temperature and volume of the gas respectively are.

If one mole of an ideal gas (C_(p.m.)=(5)/(2)R) is expanded isothermally at 300K until it’s volume is tripled, then change in entropy of gas is:

Two moles of an ideal gas is expanded irreversibly and isothermally at 37^(@)C until its volume is doubled and 3.41 KJ heat is absorbed from surrounding. DeltaS_("total")("system +surrounding") is:

If one mole of an ideal gas C_p = 5/2 R is expanded isothermally at 300 k until it's volume is tripled., if expansion is carried out freely (P_(ext)=0), then DeltaS is :

A high-altitude balloon is filled with 1.41xx10^(4)L of hydrogen at a temperature of 21^(@)C and a pressure of 745 torr. What is the volume of the balloon at a height of 20 km, where the temperature is -48^(@)C and the pressure is 63.1 torr?

A cylinder with a movable piston contains3moles of hydrogen atstandard temperature and pressure. The walls of the cylinder are made of a heat insulator, and the piston is insulated by having a pile of sand on it. By what factor does the pressure of the gas increase if the gas is compressed to half its original volume ?

2 mole of an ideal gas at 27^(@)C expands isothermally and reversibly from a volume of 4 litre to 40 litre. The work done (in kJ) by the gas is :