Statement-1 : In an adiabatic process, change in internal energy of a gas is equal to work done on/by the gas in the process.
Statement-2 : This is because temp.of gas remains constant in an adiabatic process.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If the assertion and reason both are false

Answer

C

Explanation

In an adiabatic process, no exchange of heat is permissible, i.e., `DeltaQ=0`.
As, `DeltaQ=DeltaU+DeltaW=0 implies DeltaU = -DeltaW`.
Also in adiabatic process, temperature of gas changes.