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Delta U= + 200 J for a system that gives...

`Delta U= + 200 J` for a system that gives off 200 J of heat and

A

does 200 J of work

B

has 400 J of work done on it

C

does no work

D

has 100 J of work done on it

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta U = = 200 j , q = - 200 j`
` Delta U = q + W rArr therefore W = Delta U- q `
`W= + 200 J ,= = 400 J `
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