A rigid tank contains an ideal gas at 40°C that is being stirred by a paddle wheel. The paddle wheel does 150 kJ of work on the ideal gas. It is observed that the temperature of the ideal gas remains constant during this process as a result of heat transfer between the system and the surroundings at 30°C. Determine the entropy change of the ideal gas.

Entropy change is zero

Explanation:

∆S=S2-S1=0

We're S is entropy

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