The ΔH of the following reaction is 228 kcal/mol (953 kJ/mol). 
2 Cs(g) + Br₂(l) → 2 CsBr(s)Does the entropy of the reaction decrease or increase? Why?

• A. The entropy of the reaction decreases because two atoms of gas react with one molecule of liquid to produce two molecules of solid.
• B. The entropy of the reaction increases because two atoms of gas react with one molecule of liquid to produce two molecules of solid.
• C. The entropy of the reaction increases because two molecules of solid produce two atoms of gas and one molecule of liquid.
• D. The entropy of the reaction decreases because two molecules of solid produce two atoms of gas and one molecule of liquid.

Answer: (A)