Explanation:
Examples
Some reactions are virtually instantaneous - for example, a precipitation reaction involving the coming together of ions in solution to make an insoluble solid, or the reaction between hydrogen ions from an acid and hydroxide ions from an alkali in solution. So heating one of these won't make any noticeable difference to the rate of the reaction.
Almost any other reaction you care to name will happen faster if you heat it - either in the lab, or in industry.
