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A fixed mass m of a gas is subjected to ...

A fixed mass `m` of a gas is subjected to transformation of state: `K` to L to `M` and back to `K` as shown in the figure.
The succeeding operations that enabel this transformation of state are

A

heating , cooling , heating , cooling

B

cooling , heating , cooling , heating

C

heating,cooling , cooling, heating

D

cooling , heating , heating , cooling

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The correct Answer is:
c
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