2 moles of oxygen are mixed adiabatically with another 2 moles of oxygen in the mixing chamber so that the final total pressure and temperature of the mixture become the same as those of the individual constituents at their initial states. The universal gas constant is given as R. The change in entropy due to mixing, per mole of oxygen, is given by A. −R ln2 B. 0 C. R ln2 D. R ln4
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Edited: Sep 29, 2022
Mixing of gases - GATE ME '08
Mixing of gases - GATE ME '08
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The correct option is B.
Since the final temperature is same as that of initial temperature the entropy change is zero.