Like the funnies.
Speaking of thermodynamics exams, the toughest I came across was in 3rd year Chemical Engineering. The subject was a mixture of thermo and mass transfer operations. The semester was one assignment after another, jam packed with problems that could often be solved by more than one or two methods. In our final exam we had to do 6 out of the 7 questions.
Unbeknownst to us, 2 of the problems had been deliberately tampered with by the Professor so as to remove anough information so as to make the problem impossible to solve. To get full marks, you had to fathom that out, declare that there was not enough information, assume a value for what you thought you needed and complete the solution.
Oh, and everyone knows Hell is exothermic - stands to reason doesn't it
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