Question

# According to the first law of thermodynamics which of the following quantities represents the change in a state function?

A
qreV
B
qreVWreV
C
qreVWreV
D
qreV+WreV

Solution

## The correct option is D $$\displaystyle { q }_{ reV }+{ W }_{ reV }$$A state function is a property whose value does not depend on the path taken to reach that specific value.Internal energy is an example of state function.$$\Delta E={ q }_{ rev }+{ w }_{ rev }$$Whereas heat and work done are not state functions.Chemistry

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