Respuesta :
The given statement that heat flows from cold to hot body and hot to cold body, in both directions is false.
Heat transfer occurs any time there is a temperature differential between two states of matter. Only heat transmission from a hot object to a cold object, or in the other direction, occurs. Heat will flow so as to equalize the temperature throughout the objects and till they attain thermal equilibrium.
We understand that the entropy of a closed system can never increase according to the second rule of thermodynamics.
Inferring that heat will always move from a state of higher temperature to a state of lower temperature from this law.
Heat is a form of energy. The system's hotter atoms will absorb more heat energy, which will cause them to vibrate more vigorously.
The atoms or molecules in the system with the lower temperature are not vibrating because of their lower temperature.
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