Physics, 02.04.2020 03:00 OnlyaBurden

A 1-m3 tank containing air at 25 o C and 500 kPa is connected through a valve to a second tank containing 5 kg of air at 35 o C and 200 kPa. When we open the valve we let the system to reach thermal equilibrium with the surroundings, which is at 20 o C.

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