Explain empty one-liter flask with a closed stopcock

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The He gas is contained in a one-liter flask that is connected to an empty one-liter flask with a closed stopcock between the two flasks. While the stopcock is opened some of the He enters the evacuated flask. For this system

A. H is positive and S is negative

B. H is zero and S is positive

C. H is zero and S is negative

D. H is negative and S is positive

Reference no: EM13677805

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