A 10-kg steel container (cp = cv = 0.46 kJ/(kg K)) is cured at 500 °C. After coming out of the oven, 10 kg of liquid water at 15 °C, 100 kPa is added to the container, so that the final uniform temperature of the steel and water becomes 50 °C. During this process, the steel and water lose heat to the environment, which is at a temperature of 25 °C. Neglect any water that might evaporate and ignore any air in the container. How much heat was transferred to the environment? How much entropy was generated in this process?  Why does this process generate entropy?

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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.