A rigid tank contains air at 500 kPa and 150°C. As a result of heat transfer to . the surroundings, the temperature and pressure inside the tank drop to 65°C and * ?400 kPa, respectively. the boundary work done during the process is positive negative O zero non of the above

A rigid tank contains air at 500 kPa and 150°C. As a result of heat transfer to . the surroundings, the temperature and pressure inside the tank drop to 65°C and * ?400 kPa, respectively. the boundary work done during the process is positive negative O zero non of the above

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

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.

Question

A rigid tank contains air at 500 kPa and 150°C. As a result of heat transfer to.
the surroundings, the temperature and pressure inside the tank drop to 65°C and
* ?400 kPa, respectively. the boundary work done during the process is
positive
negative
zero
non of the above

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