18) 10 J of heat are removed from a gas sample while it is being compressed...

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18) 10 J of heat are removed from a gas sample while it is being compressed by a piston that does 30 J of work. Determine, in

14) A 10,000-kg railroad car traveling at a speed of 2.0 m/s strikes an identical car at rest. The cars lock together as a re

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Answer 1

Answer #1

heat removed is negative Q = -loJ work= -30J By first law of the modynamics -To=-30 + AU AU=20J option-c 18 correct

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