In a piston, the addition of 15.1 kJ of heat to a 100. g sample of a liquid at a constant temperature of 35.2 ºC caused the liquid to vaporize (change to a gas). The vaporized gas expanded against an external pressure of 1.51 atm and a volume change of 15.87 L was observed. {Recall: 1 L ∙ atm = 101.3 J} What was the change in the internal energy of the system, (∆E in kJ)?
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In a piston, the addition of 15.1 kJ of heat to a 100. g sample of a liquid at a constant temperature of 35.2 ºC caused the liquid to vaporize (change to a gas). The vaporized gas expanded against an external pressure of 1.51 atm and a volume change of 15.87 L was observed. {Recall: 1 L ∙ atm = 101.3 J} What was the change in the internal energy of the system, (∆E in kJ)?
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