A rigid vessel containing three moles of nitrogen gas at 30C is heated to 250C. Assume the average capacities of nitrogen to be Cp = 29.1 J/mole.C and, Cv = 20.8 J/mole.C. The heat required, neglecting the heat capacity of the vessel, is__________________?

A. 4576 J

B. 13728 J

C. 12712 J

D. 19206 J
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