Q.

In which process net work done is zero?(i) Cyclic (ii) Free expansion(iii) Isochoric (iv) Adiabatic

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a

(ii, iv)

b

(ii, iii)

c

(iii, iv)

d

(i, ii)

answer is B.

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Detailed Solution

expansion in vacuum does not need work done and at constant volume also work done is zero.
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In which process net work done is zero?(i) Cyclic (ii) Free expansion(iii) Isochoric (iv) Adiabatic