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Thermodynamics

Question
CBSEENCH11006033

Why heat is not a state function?

Solution
According to the first law of thermodynamics,
space space increment straight U space equals space straight q space plus space straight w space space space or space space space straight q space equals space increment straight U space minus space straight w
As ∆U is a state function but w is not a state function, therefore q is also not a state function.