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exercise1 - 252 College Physics II Exercise 1 Useful data:...

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252 College Physics II Exercise 1 Useful data: Coeffcient of volume expansion of brass = 57 x 10 -6 ( o C) -1 Coeffcient of volume expansion of mercury = 182 x 10 -6 ( o C) -1 Coeffcient of volume expansion of steel = 36 x 10 -6 ( o C) -1 Atmospheric pressure P 0 = 1.01 x 10 5 Pa Density of salt water sw = 1.025 x 10 3 kg/m 3 Acceleration due to gravity g = 9.80m/s 2 Boltzmann constant k = 1.38 x 10 -23 J/K Mass of an oxygen molecule = 32 u Atomic mass unit u = 1.66 x10 -27 kg Specific heat of iron c Fe = 450 J/(kg o C) Latent heat of fusion of iron L f,Fe = 2.89 x 10 5 J/kg Latent heat of fusion of water L f,water = 3.33 x 10 5 J/kg Stefan Boltzmann constant = 5.67 x 10 -8 W/(m 2 K 4 ) Melting point of iron = 1808K 1. A cubic box of volume 5.1x10 -2 m 3 is filled with air at atmospheric pressure at 20 o C. The box is closed and heated to 180 o C. What is the net force on each side of the box? 2. A scuba tank, when fully charged, has a pressure of 195 atm at 20 o C. The volume of the tank is 11.3 L. (a) What would the volume of the air be at 1.00 atm and at the same temperature?

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This note was uploaded on 02/22/2012 for the course CHEM yscn0027 taught by Professor Drtong during the Fall '10 term at HKU.

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exercise1 - 252 College Physics II Exercise 1 Useful data:...

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