Which of the following has no effect on the rate ofa reaction?

Question

a)degree of branching or size of reactant molecules
b)value of Heat of reaction
c)presence of a catalyst
d)temperature of the reactants
e) concentrations of the reactants

Answer 1

https://www.chem.tamu.edu/class/majors/tutorialnotefiles/factors.htm

Those four, and only those four, affect the reaction rate.