Question

Which of the following is true for entropy?

• A. Entropy decreases with increase in randomness
• B. Entropy is the measure of randomness of a system
• C. Entropy remains constant in every process
• D. Entropy is always zero for gases

Hint:

Remember the entropy order: \[ \text{Solid} < \text{Liquid} < \text{Gas} \] More freedom of movement \(\Rightarrow\) More randomness \(\Rightarrow\) Higher entropy. Also:
• Melting increases entropy
• Vaporization greatly increases entropy
• Cooling decreases entropy

Answer 1

The Correct Option is B