Mechanical Engineering 101

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Group run by professor at IIT-K for clarification of doubts in Mechanical Engineering concepts related to ESE / GATE / PSUs / PSCs....- Only Q and A format allowed...Users who post anything else will be banned.....Answers will be posted within 2 days....

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Hey ! Please explain how to solve this Q - At a place where the surroundings are at 1 bar 27°C, a closed rigid thermallyinsulated tank contains 2 kg air at 2 bar, 27°C. This air is then churned for awhile, by a paddle wheel connected to an external motor. If it is given that theirreversibility of the process is 100 kJ, find the final temperature and the increasein availability of air. Assume for air, Cv = 0.718 kJ / kgK.

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