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(a) In a diesel engine, the piston compresses air at 305 K to a volume that...

(a) In a diesel engine, the piston compresses air at 305 K to a volume that is one-sixteenth of the original volume and a pressure that is 48.5 times the original pressure. What is the temperature of the air after compression?[7 pts]

(b) In moving out of a dormitory at the end of the semester, a student does 1.6 × 104 J of work. In the process, his internal energy decreases by 4.2 × 104 J. Determine each of the following quantities (including algebraic sign): (I) W, (II) ∆Eth, and (III) Q. [13 pts]

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