Consider two closed systems a and b. system a contains 300 kj of thermal energy at 20c, whereas system b contains 200kj of thermal energy at 50oc. now the systems are brought into contact with each other. determine the direction of any heat transfer between the two systems and explain your answer.

Explanation:

Heat will flow from system B to system A. This is because system B has a higher temperature than system A. Temperature is a measurement od thermodynamic equilibrium. A difference of temperature between two systems is a thermal unbalance, which if they are in contact is compensated by a flow of heat to change the temperatures and reach an equilibrium.

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