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
${{{S_1}} \over {{S_2}}}$
S1 $\times$ S2
S1 + S2
Solution
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