Assertion : The heat supplied to a system is always equal to the increase in its internal energy. Reason : When a system changes from one thermal equilibrium to another, some heat is absorbed by it.
Choose Your Option
A. Assertion is correct, reason is correct; reason is a correct explanation for assertion.
B. Assertion is correct, reason is correct; reason is not a correct explanation for assertion
C. Assertion is correct, reason is incorrect
D. Assertion is incorrect, reason is correct.