Thermodynamics Questions

The molar specific heats of an ideal gas at constant pressure and volume are denoted by CP and CV, respectively. If and R is the universal gas constant, then CV is equal to :...

A gas is taken through the cycle A → B → C → A, as shown, What is the net work done by the gas ?...

A gas mixture contain 1 gm. H2 and 1 gm. He if temp. of gas mixture increase 0oC to 100o C at isobaric process. Than find given heat of gas mixture[γHe = 5/3, γH2 = 7/5, R = 2 cal/molek]...

If amount of heat supplied is ᐃQ work done is ᐃW and change in internal energy is mCV dT. Than the relation among them is & (Cv = gm specific heat)...

A carnot engine having an efficiency of 110as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at lower temperature is :...

A refrigerator works between 4oC and 30oC. It is required to remove 600 calories of heat every second inorder to keep the temperature of the refrigerated space constant. The power required is: (Take 1...

A gas is compressed isothermally to half its initial volume. The same gas is compressed separately throughan adiabatic process until its volume is again reduced to half. Then:

Two moles of an ideal monoatomic gas occupies a volume V at 27oC. The gas expands adiabatically to a volume 2V. Calculate (a) the final temperature of the gas and (b) change in its internal energy....

A sample of 0.1 g of water at 100oC and normal pressure (1.013 ×105 Nm-2) requires 54 cal of heat energy to convert to steam at 100oC. If the volume of the steam produced is 167.1 cc, the change ...

The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is :-

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its temperature. The ratio of Cp/Cv for the gas is :-...

A monoatomic gas at a pressure P, having a volume V expands isothermally to a volume 2 V and then adiabatically to a volume 16 V. The final pressure ofthe gas is (take γ = )...

One mole of diatomic ideal gas undergoes a cyclic process ABC as shown in figure. The process BC is adiabatic. The temperatures at A, B and C are 400 K, 800 K and 600 K respectively. Choose the correc...

One mole of an ideal gas goes form an initial state A to final state B via two processes: It first undergoesisothermal expansion from volume V to 3V and then its volume is reduced from 3V to V at cons...

During an isothermal expension, a confined ideal gas does - 150 J of work against its surroundings. The implies that

A monoatomic gas at pressure P1 and volume V1 is compressed adiabatically to of its original volume. What is the final pressure of the gas ?...

An ideal monoatomic gas is taken round the cycle ACBCA as shown in the p-V diagram (see figure). The work done during the cycle is...

70 cal of heat are required to raise the temperature of 2 moles of an ideal diatomic gas at constant pressure 30oC to 35oC. The amount of heat required (in calorie) to raise the temperature of the sam...

When an ideal diatomic gas is heated at constant pressure the fraction of the heat energy supplied which increases the internal energy of the gas is

Tw identical containers A and B with frictionless pistons contains the same ideal gas at the same temperature and the same volume V. The gas in each cylinder is now allowed to expand isothermally to t...