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Homework 22

# Homework 22 - lim(kl9356 Homework 22 Weathers(17104 This...

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lim (kl9356) – Homework 22 – Weathers – (17104) 1 This print-out should have 18 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points A square hole 10 . 5 cm along each side is cut in a sheet of copper. Calculate the change in the area of this hole if the temperature of the sheet is increased by 76 K. Answer in units of cm 2 . 002 (part 1 of 2) 10.0 points At 9 C, an aluminum ring has an inner diam- eter of 3 cm and a brass rod has a diameter of 3 . 06 cm. If the temperature coefficient of expansion for brass is α b = 1 . 9 × 10 5 ( C) 1 and the temperature coefficient of expansion for alu- minum is α a = 2 . 4 × 10 5 ( C) 1 , to what temperature must the ring be heated so that it will just slip over the rod? Answer in units of C. 003 (part 2 of 2) 10.0 points To what temperature must both be heated so that the ring just slips over the rod? Answer in units of C. 004 10.0 points 2 mole of xenon gas at 37 C occupies 0 . 294 m 3 . What is the pressure exerted by the Xe atoms on the walls of a container? Answer in units of Pa.

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