In a heat-treating process, a 10-kg metal part, initially at 1100 K, is quenched in a closed tank containing 100 kg of water, initially at 295 K. There is negligible heat transfer between the contents of the tank and their surroundings. Modeling the metal part and water as incompressible with constant specific heats 0.5 kJ/kg . K and 4.4 kJ/kg. K, respectively, determine the final equilibrium temperature after quenching, in K.

In a heat-treating process, a 10-kg metal part, initially at 1100 K, is quenched in a closed tank containing 100 kg of water, initially at 295 K. There is negligible heat transfer between the contents of the tank and their surroundings. Modeling the metal part and water as incompressible with constant specific heats 0.5 kJ/kg . K and 4.4 kJ/kg. K, respectively, determine the final equilibrium temperature after quenching, in K.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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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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In a heat-treating process, a 10-kg metal part, initially at 1100 K, is quenched in a closed tank containing 100 kg of water, initially at
295 K.There is negligible heat transfer between the contents of the tank and their surroundings.
Modeling the metal part and water as incompressible with constant specific heats 0.5 kJ/kg . K and 4.4 kJ/kg • K, respectively,
determine the final equilibrium temperature after quenching, in K.

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