An automobile tire initially contains 0.25lb of air at 30psig, 70F and has an automatic valve that releases air whenever the pressure exceeds 32psig. After driving, the temperature of air inside rose to 90F. What mass of air escapes into the atmosphere?

An automobile tire initially contains 0.25lb of air at 30psig, 70F and has an automatic valve that releases air whenever the pressure exceeds 32psig. After driving, the temperature of air inside rose to 90F. What mass of air escapes into the atmosphere?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 29RQ: If 3000 ft3 of air is crossing an evaporator coil and iscooled from 75F to 55F, what would be the...

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

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An automobile tire initially contains 0.25lb of air at 30psig, 70F and has an automatic valve that releases air whenever the pressure exceeds 32psig. After driving, the temperature of air inside rose to 90F. What is the tire pressure when the air returns to 70F?
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