Question

Which among the following does not affect the rate of reaction?

• A. Temperature
• B. Heat of reaction
• C. Presence of a catalyst
• D. Concentration of reactants

Answer 1

Answer:

B. Heat of reaction

• In chemical kinetics, the rate of reaction refers to how fast a reaction proceeds. • While several factors can change the speed of the particles or the frequency of their collisions, the thermodynamic stability of the products versus the reactants does not dictate the speed. • The Heat of Reaction is a thermodynamic property. it tells us whether a reaction is exothermic (releases heat) or endothermic (absorbs heat). It only describes the difference in energy between the starting materials and the final products.