5.27 Calculate ¢E and determine whether the process is endothermic or exothermic for the following cases: (a) q = 0.763 kJ and w = −840J; (b) a system releases 66.1 kJ of heat to its surroundings while the surroundings do 44.0 kJ of work on the system; (c) the system absorbs 7.25 kJ of heat from the surroundings while its volume remains constant (assume that only P-V work can be done) I got a and b I just need c

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