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A reaction at 3.28 atm produces 19.0 L of a gas and absorbs 78.5 kJ of...

A reaction at 3.28 atm produces 19.0 L of a gas and absorbs 78.5 kJ of heat (endothermic). Calculate
the change in internal energy of the system. (1 L. atm = 101.3J)

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