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DeltaE is always positive when...

`DeltaE` is always positive when

A

System absorbs heat and work is done on it

B

System emits heat and work is done by it

C

System emits heat and no work is done on it

D

System absorbs heat and work is done by it

Text Solution

Verified by Experts

The correct Answer is:
A
When system absorbs heat then `q gt 0` and when work is done on the system then `w gt 0` so `Delta E = q + w gt 0`.
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