Question

Assertion : There is no change in internal energy in a cyclic process.
Reason : Internal energy is a state function.

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

Answer 1

Answer: (A)

A function that depends only on the initial and final states of the system and is independent of the path are known as state functions. Therefore, internal energy is a state function. A cyclic process has the same initial and final states. Therefore, internal energy change is zero for a cyclic process.