Question

Which of the following most likely causes the rate of a chemical reaction to increase?

a) Decrease in reaction temperature
b) Slowing down of the reactive molecules
c) Take away heat from the reaction
d) Adding heat to the reaction

Answer 1

Increasing the temperature of a reaction results in a higher reaction rate due to increased collisions and force with activation energy barrier.

Step-by-step explanation:

Raising the temperature of a chemical reaction usually results in a higher rate of reaction. When the reactant particles are heated, they move faster and faster. This results in a greater frequency of collisions. A more important effect of the temperature increase is that the collisions occur with a greater force, and are thus more likely to surmount the activation energy barrier and go on to form products. Increasing the temperature of a reaction increases the number of effective collisions between reacting particles, so the reaction rate increases.