Predict whether entropy increases or decrease for the following reaction and explain why. (Do notcalculate entropy): \text { a) } 2 \mathrm{Al}_{(s)}+3 \mathrm{l}_{2(s)} \rightarrow 2 \mathrm{All}_{3(s)} \text { b) } \mathrm{C}_{(5)}+\mathrm{O}_{2(e)} \rightarrow \mathrm{CO}_{2(e)} \text { c) } 2 \mathrm{KClO}_{3(5)} \rightarrow 2 \mathrm{KCl}_{i s t}+3 \mathrm{O}_{2(\xi)} \text { d) } \mathrm{CH}_{3} \mathrm{OH}_{n} \rightarrow \mathrm{CH}_{2} \mathrm{OH}_{(2)}