Which statement is true? A rate law for any particular reaction must be determined
experimentally.

A rate law changes only if the temperature increases.

The value of k in a rate law is independent of the temperature
at which a reaction occurs.

A rate law can be determined solely by the coefficients of a
chemical equation

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

answerlinnaeus;