Q12 / 200 · WBJEE 2013 · Chemistry
The change of entropy $(d S)$ is defined as
- A$d S=\frac{\delta q}{T}$
- B$d S=\frac{d H}{T}$
- Correct answerC$d S=\frac{\delta q_{eqv}}{T}$
- D$d S=\frac{d H-d G}{T}$
Solution
The entropy is the measure of disorder or randomness in a system. When a system changes from one state to another, the change of entropy, $d S$ is given by
$$
d S=\frac{\delta q_{\mathrm{rev}}}{T}
$$
Hence, the correct answer is option: 'C'.