question_answer

This question has Statement 1 and Statement 2.                 [JEE ONLINE 07-05-2012]

Of the four choices given after the Statements, choose the one that best describes the two Statements.

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: The temperature of a gas remains constant in an adiabatic process.

A)  Statement 1 is true. Statement 2 is true, Statement 2 is a correct explanation of Statement 1.

B)  Statement 1 is true. Statement 2 is false.

C)   Statement 1 is false, Statement 2 is true.

D)  Statement 1 is false. Statement 2 is true, Statement 2 is not a correct explanation of Statement 1.

Correct Answer: B

Solution :

[b] In an adiabatic process,And according to first law of thermodynamics