Question

The energy to be possessed by the molecule participating in the reaction to give the products is:

• A. < activation energy
• B. threshold energy
• C. < average energy
• D. threshold energy + average energy

Answer 1

The correct option is B threshold energy

For a reaction to occur, reactant molecules must collide with each other. Only those collisions result in product formation which have energy equal or more than a certain minimum energy. This energy is called the threshold energy. The energy to be possessed by the molecule participating in the reaction to give the products is threshold energy.