In free expansion process.a) Work is done on the systemb) work is done by the systemc) work done is zero.

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a only

b only

c only

b (or) c

answer is C.

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Detailed Solution

ΔQ=0 in free expansionΔU=0 in free expansionFrom 1st law of thermodynamics ΔQ=ΔU+ΔW0=0+ΔWΔW=0

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