Which of the following processes leads to increase in entropy?
A. Mixing of a sample of \(NaCl\) and sand B. Condensation of water vapour C. Boiling of a sample of water D. Cooling a saturated solution
Correct Answer: C
Explanation
Entropy is a measure of the degree of randomness or disorderliness of a system. The greater the disorder of a system the greater is entropy. Processes such as melting, vapourization, dissolution etc. increases entropy since the no of microstates in each process increases. Thus, boiling of water increases disorderliness or entropy.
