For each reaction, estimate whether for the reaction is positive, negative, or impossible to predict.
a. is positive
In the reaction n- decane is broken into propene and heptane. Hence there is increase of randomness. Thus entropy increases.
b. is negative
In this reaction two molecules of acetone are joined to form one molecule. Thus disorder ness decreases. Hence, entropy decreases.
c. is not easy to predict
In this reaction two molecules reacts to give two molecules of product.
Different bonds are broken and formed. Hence, entropy cannot be easily predicted unless and until exact value of entropy of reactant and products are known.