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Which one is not correct for a cyclic pr...

Which one is not correct for a cyclic process as shown in the figure ?

A

dU = 0

B

q = -W

C

W = 314 J

D

W = 31.4 J

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
For a cyclic process `dU = 0`
`:. q = Delta U + (-w) " " q = -w`
Also, w = area covered by sphere
`= pi r^(2)=pi xx[((V_(2)-V_(1)))/(2)]^(2) = (pi xx (20)^(2))/(2^(2)) = 100 xx 3.14 = 3.14 J`
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