An adiabatic process occurs at constant,

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its temperature. The ratio $\frac{C_P}{C_V}$ for the gas is

If the door of a refrigerator is kept open, then which of the following is true?

If the amount of heat given to a system be $35 \mathrm{joule}$ and the amount of work done by the system be $-15 \mathrm{joule}$, then the change in the internal energy of the system is 

In an adiabatic process, $90 \mathrm{J}$ of work is done on the gas. The change in internal energy of the gas 

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

The internal energy change in a system that has absorbed $2 \mathrm{kcal}$ of heat and done $500 \mathrm{J}$ of work is similar, 

If $Q, E \mathrm{and} W$ denote respectively the heat added, change in internal energy and the work done in a closed cycle process, then,