Question

in Thermodynamics system internal energy decrease by 100 j and 100 j of work done is on the system then heat lost will be
A: 0
B: 100J
C: 200J
D: -200J​

Answer 1

Answer:

A. 0

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Answer 2

Answer:

Correct option is

A

100 J

ΔU=Q−W [From !st law of thermodynamics]

Q=200J

W=100J

∴ΔU=(200−100)J=100J

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