21. Solving a chemistry problem

21. Solving a chemistry problem

2. 100 g of benzene are converted into vapor at the boiling point at 80.2 C and 760 mm Hg. Art. The heat of evaporation is 94.4 cal/r. Calculate: a) Wrev b) Q. c) ΔH and d) ΔU .
Answer: a) -898, b) 9440, c) 9440. d) 8542 cal.

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