Question

A particular reaction, a → products, has a rate that slows down as the reaction proceeds. the half-life of the reaction is found to depend on the initial concentration of

a. determine whether each statement is likely to be true or false for this reaction.

Answer 1

Generally, the rate of a reaction will decrease with increasing temperature, although there are some exceptions in the case of non-elementary reactions. However it is more likely that the first statement is false.
Half-life is a measure of the time taken for a to reach 1/2 of its initial concentration, and is generally completely independent of reagent concentration within a first order reaction, which is likely what this reaction is, therefore statement 2 is also likely false.
Hope this helps!