8. Thermochemistry
Endothermic & Exothermic Reactions
Multiple Choice
Multiple ChoiceIf a cylinder equipped with a piston expands against an external pressure of 1.25 atm, increasing the volume of a cylinder by 0.500 L and releasing 25.0 J of heat, what is ΔE for the process?
A
−88.3 J
B
−63.3 J
C
63.3 J
D
0.625 J
E
−25.6 J
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