(Answered) 1 air expands from a tank maintained at 18-c and 250 kpa to

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1. Air expands from a tank maintained at 18-C and 250 kPa to the atmosphere. Estimate its minimum temperature as it exits.

2. Air at 22-C is received from the atmosphere into a 200 cm3 cylinder. Estimate the pressure and temperature if it is compressed isentropically to 10 cm3.

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