Question

Which statement about kinetic energy is true?

A) It increases if a catalyst is added to the reaction.
B)It is not affected by temperature.
C) It is the energy required to form a new product.
D)It doesn't affect the collision of reacting substances.

Answer 1

It is the energy required to form a new product.

Step-by-step explanation:

a) the catalyst is a substance which can alter the rate of reaction by providing an alternate pathway with lower activation energy.

so kinetic energy is not related to catalyst.

b) kinetic energy increases with increase in temperature.

c) To form a product, reactant molecules must collide with a particular energy (kinetic energy). If this energy and proper orientation is present then the reactant molecules are said to undergo effective collision giving products.

d) as explained above, the collision of reactant molecules will be affected by kinetic energy.

Answer 2

Answer: Option (C) is the correct answer.

Step-by-step explanation:

Kinetic energy is defined as the energy obtained by an object due to its motion.

In a chemical reaction, in order to form new product(s) it is necessary that the participating atoms or reactants should collide with each other. This collision can only be possible when atoms have some kinetic energy.

Therefore, we can conclude that the statement it is the energy required to form a new product, is true about kinetic energy.