An unknown material, m1 = 0.26 kg, at a temperature of T1 = 89 degrees C is added to a Dewer (an insulated container) which contains m2 = 1.6 kg of water at T2 = 24 degrees C. Water has a specific heat of cw = 4186 J/(kg⋅K). After the system comes to equilibrium the final temperature is T = 32.8 degrees C. Part (a)  Input an expression for the specific heat of the unknown material.  Part (b)  What is the specific heat in J/(kg⋅K)?

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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.