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It is a piston-cylinder system containing oxygen gas, which initially has a volume of 56 L and a temperature of 156 C, undergoes adiabatic expansion,

It is a piston-cylinder system containing oxygen gas, which initially has a volume of 56 L and a temperature of 156 C, undergoes adiabatic expansion, the gas expands to a volume such that its temperature is 42 C if the work that the gas carried out was -43 KJ, determine the pressure change of the system

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