List of top Physics Questions on Thermodynamics terms

The coefficient of performance of a refrigerator is 5. If the temperature inside the freezer is \( -20^\circ \mathrm{C} \), what is the temperature of the surroundings to which it rejects heat?

For three low density gases \(A , B , C\) pressure versus temperature graphs are plotted while keeping them at constant volume, as shown in the figure.

The temperature corresponding to the point ' \(K\) ' is :

An ideal gas undergoes a thermodynamic process following the relation PT² = constant. Assuming symbols have their usual meaning then volume expansion coefficient of the gas is equal to

An engine has an efficiency of \( \frac{1}{3} \). The amount of work this engine can perform per kcal of heat input is :

During an adiabatic process, the pressure P of a fixed mass of an ideal gas changes by \( \Delta P \) and its volume V changes by \( \Delta V \). If \( \gamma = C_P/C_V \), then \( \Delta V/V \) is given by:

In the indicator diagram, AB is an isotherm and BC is an adiabat, because :

Which equation is valid for adiabatic process?

Internal energy of a gas remains unchanged in:
I. an isothermal process
II. an adiabatic process
III. a reversible process
IV. a cyclic process

IUPAC name of \( (CH_{3})_{3}CCl \) is

The change in internal energy of a system which has absorbed 2 kcal of heat and done 500 J of work is: