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JEE Main 2021 (18 Mar, Shift 2) · Heat Engines, Refrigerators & Second Law

Heat Engines, Refrigerators & Second Law question from JEE Main 2021 (18 Mar, Shift 2)

Q43JEE Main 2021 · 18 MAR · SHIFT 2Medium

Heat Engines, Refrigerators & Second Law

An ideal gas in a cylinder is separated by a piston in such a way that the entropy of one part is S1 and that of the other part is S2. Given that S1 > S2. If the piston is removed then the total entropy of the system will be:

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Answer: (d)

Entropy is an extensive (additive) quantity.
Total entropy of the two parts $= S_1 + S_2$ .
So the answer is (d) $S_1 + S_2$ .

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