Ask a question about college general chemistry (boring) (wait for the answer online) - Education and Training Encyclopedia

Ask a question about college general chemistry (boring) (wait for the answer online)

Solution: △U=Q+W(Q is the heat of vaporization)

Q=39.2KJ/MOL* 1MOL=39.2KJ

W (volume work) =-p △ v =-NRT =-1* 0.008314 * 351.65 =-2.924kj (t is the boiling point of ethanol).

△U = Q+W = 39.2 kj+(-2.924 kj)= 36.276 kj

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