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Question
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 ______.
Options
S1 - S2
S1 × S2
`"S"_1/"S"_2`
S1 + S2
MCQ
Fill in the Blanks
Solution
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 S1 + S2.
Explanation
Gas is identical, so after removal of the piston, the total entropy of the system, S = S1 + S2.
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Second Law of Thermodynamics
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