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Air weighs 0.25 kg at 2.5 bar in a closed rigid container with a volume of 0.2 m experience an energy transfer of 25 kJ.

Air weighs 0.25 kg at 2.5 bar in a closed rigid container with a volume of 0.2 m experience an energy transfer of 25 kJ. Determine the initial temperature.

R= 0.2870 kJ/kgK, cp= 1.005 kJ/kgK.

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