Q1: A sample consisting of 0.4 mol of gas is expanded isothermally at 250K from 0.001m3 to 0.008m3 reversibly. Calculate q. a. + 192 J b. - 1728 J c. - 192 J d. + 1728 J

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Q1: A sample consisting of 0.4 mol of gas is expanded isothermally at 250K from 0.001m3 to 0.008m3 reversibly. Calculate q.

a. + 192 J
b. - 1728 J
c. - 192 J
d. + 1728 J

Q 2: A chemical reaction takes place in a container fitted with a piston of cross-sectional area 10cm2. As a result of the reaction, the gas undergoes an expansion, the piston is pushed out through 8cm against an external pressure of 106Pa. Calculate the work.

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