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A solid body of constant heat capacity $1 \mathrm{~J} /{ }^{\circ} \mathrm{C}$ is being heated by keeping it in contact with reservoirs in two ways:
(i) Sequentially keeping in contact with 2 reservoirs such that each reservoir supplies same amount of heat.
(ii) Sequentially keeping in contact with 8 reservoirs such that each reservoir supplies same amount of heat.
In both the cases body is brought from initial temperature $100^{\circ} \mathrm{C}$ to final temperature $200^{\circ} \mathrm{C}$. Entropy change of the body in the two cases respectively is:
Options:
(i) Sequentially keeping in contact with 2 reservoirs such that each reservoir supplies same amount of heat.
(ii) Sequentially keeping in contact with 8 reservoirs such that each reservoir supplies same amount of heat.
In both the cases body is brought from initial temperature $100^{\circ} \mathrm{C}$ to final temperature $200^{\circ} \mathrm{C}$. Entropy change of the body in the two cases respectively is:
Solution:
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Verified Answer
The correct answer is:
$\ln 2, \ln 2$
The entropy change of the body in the two cases is same as entropy is a state function.
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