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1 December, 08:47

Two closed systems A (4000 kJ of thermal energy at 30°C) and B (3000 kJ of thermal energy at 40°C) are brought into contact with each other. Determine the direction of any heat transfer between the two systems and explain why.

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  1. 1 December, 11:43
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    The direction of any heat transfer between the systems will be from system B to System A.

    Explanation:

    The direction of any heat transfer between the systems will be from system B to System A.

    Even if the system A has a higher thermal Energy it will be from B to A because the system B has a higher temperature than A. The energy will be transferred from B to A until the temperature of the two systems equals and the temperature is in equilibrium.

    This comes from the fundamental law of thermodynamics.
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