NEET2016PhysicsThermodynamicsActual
Assertion : In an adiabatic process, change in internal energy of a gas is equal to work done on or by the gas in the process. Reason : Temperature of gas remains constant in an adiabatic process.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false.
- DIf both assertion and reason are false.
Correct answer
C. If assertion is true but reason is false.
Step-by-step solution
Assertion is true but reason is false. In an adiabatic process, no exchange of heat is permissible i.e., d Q=0 . As, d Q=d U+d W=0 . d U=-d W .