Question

Heat is transferred between a system and
its surrounding. Explain this statement with
an example.​

Answer 1

$\huge\underline{\underline\mathtt{Answer:-}}$

In our day to day life, we find that when a cup of hot tea is kept on a table, it cools down after some time. In this case, the temperature of the cup of hot tea is greater than that of the surroundings. Exchange of heat takes place between the cup of tea and the surroundings. The net effect is a transfer of heat from the cup of tea (at higher temperature) to the surroundings (at lower temperature). Therefore, the cup of tea cools down after some time. The rise in the temperature of the surroundings is negligible. In general, the net transfer of heat takes place if there is temperature difference between the system and its surroundings.