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When work done by a system was 10J, the ...

When work done by a system was 10J, the increase in the internal energy of the system was 30J. The heat 'q' supplied to the system was:

A

`-40 J`

B

`+20 J`

C

`40 J`

D

`-20 J`

Text Solution

Verified by Experts

The correct Answer is:
C
`Q=DeltaU-W`
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