What is the internal energy of 5kg of superheated R-134A at-152C and 0.5 MPa? O 1.305 kJ/kg/K O 34.1 kJ/K O 0.375 m^3/kg O6.525 kJ/K O 13.74 MJ O 1.8 MJ O 2.561 MJ/kg O 394 kJ/kg O6.821 kJ/kg/K O 0.0672 m^3/kg

What is the internal energy of 5kg of superheated R-134A at-152C and 0.5 MPa? O 1.305 kJ/kg/K O 34.1 kJ/K O 0.375 m^3/kg O6.525 kJ/K O 13.74 MJ O 1.8 MJ O 2.561 MJ/kg O 394 kJ/kg O6.821 kJ/kg/K O 0.0672 m^3/kg

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 27RQ: How many Btu/h would be produced in a 12-kW electricheater?

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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

What is the internal energy of 5kg of superheated R-134A at -152C and 0.5 MPa?
O 1.305 kJ/kg/K
O 34.1 kJ/K
O 0.375 m^3/kg
O6.525 kJ/K
O 13.74 MJ
O 1.8 MJ
O 2.561 MJ/kg
O 394 kJ/kg
O 6.821 kJ/kg/K
O 0.0672 m^3/kg

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