Is entropy of vaporization always higher than entropy of fusion and why entropy of water vapour is higher than liquid water?
Entropy simply as randomness in the molecules of a substance. → Molecules of water vapour, being a gas, will have highest randomness. Water vapour will have more entropy.Since the transition from a liquid to a gas involves a greater increase in freedom of movement than the transition from a solid to a liquid, the entropy of vaporization is larger than the entropy of fusion. In thermodynamics, the entropy of vaporization is the increase in entropy upon vaporization of a liquid. This is always positive, since the degree of disorder increases in the transition from a liquid in a relatively small volume to a vapor or gas occupying a much larger space.
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