Assertion : In adiabatic process work is independent of the path.

Reason : In adiabatic process work done is equal to negative of change in internal energy.

An ideal gas of mass $$m$$ in a state $$A$$ goes to another state $$B$$ via three different processes as shown in figure. If $$Q_1, Q_2$$ and $$Q_3$$ denote the heat absorbed by the gas along the three paths, then

A gas consisting of a rigid diatomic molecules was initially under standard condition. Then, gas was compressed adiabatically to one-fifth of its initial volume. What will be the mean kinetic energy of a rotating molecule in the final state?

Assertion In isothermal process, whole of the heat energy supplied to the body is converted into internal energy.

Reason According to the first law of thermodynamics,

$$\Delta Q=\Delta U+\Delta W$$