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An insulated rigid tank contains 0.9 kg of air at 140 kPa and 22C. A paddle-wheel inside the tank is now rotated by an external

An insulated rigid tank contains 0.9 kg of air at 140 kPa and 22C. A paddle-wheel inside the tank is now rotated by an external power source until the temperature of the tank rises to 55C. If the surrounding air is at To=22C, determine: (a) The exergy destroyed. (b) The reversible work for the process. Tip: Assume constant specific heats To = 22 C AIR 0.9kg P = 140 kla T = 22 C m = I W pw

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