Q.

For an isolated system, the internal energy change ∆U at constant volume is

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a

∆U=0

b

∆U≠0

c

∆U=q+wexpansion+useful work

d

∆U=w

answer is A.

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Detailed Solution

For an isolated system q=0 and at constant volume ,w=0 therefore ∆U=0(∆U=q+w)
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