An ideal gas undergoes a cyclic process as shown in the $P-V$ diagram. The work done by the gas in the complete cycle is:

Calculate change in internal energy when 5 mole of hydrogen is heated to ${20^ \circ }C$from ${10^ \circ }C$, specific heat of hydrogen at constant pressure is 8 cal ${\left( {{\rm{mol^\circ C}}} \right)^{ - 1}}$

A vessel containing 5 litres of a gas at 0.8 M pressure, is connected to an evacuated vessel of volume 3 litres. The resultant pressure inside will be assuming whole system to the isolated.

During illness an $80\,\,kg$ man ran fever of ${102.2^{\rm{o}}}F$ instead of normal body temperature of ${98.6^{\rm{o}}}F$. Assuming that human body is mostly water, how much heat is required to raise his temperature by that amount

For a gas, the difference between the two principle specific heats is 4150 ${\rm{Jk}}{{\rm{g}}^{ - 1}}{{\rm{K}}^{ - 1}}$.What is the specific heat of the gas at constant volume if the ratio of specific heat is 1.4?

In an isothermal reversible expansion, if the volume of $96g$ of oxygen at ${27^ \circ }C$ is increased from $70litres$ to $140litres$, then the work done by the gas will be

The change in the entropy of a 1 mole of an ideal gas which went through an isothermal process from an initial state $({p_1},{V_1},T)$ to the final state $\left( {{p_2},{V_2},T} \right)$ is equal to

If 2 moles of an ideal gas are compressed adiabatically to one-fourth of their original volume, which of the following is true about the work done?

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The $\gamma$ of the gas is

Two moles of an ideal monoatomic gas at ${27^ \circ }C$ occiupies a volume of $V$. If the gas is expanded adiabatially to the volume 2$V$, then the work done by the gas will be $\left( {\gamma = \frac{5}{3},R = 8.31{\rm{J}}/{\rm{mol}} - {\rm{K}}} \right)$

An ideal gas is heated at constant pressure and absorbs amount of heat $Q$. If the adiabatic exponent is${\rm{\gamma }}$, then the fraction of heat absorbed in raising the internal energy and performing the work, in