Why does decreasing the temperature of the reactants generally result in a slower reaction rate?Question 10Select one:a.There are more collisions between reactant molecules.b.There are fewer collisions between reactant molecules.c.The reactant molecules collide with less energy.d.The reactant molecules collide with greater energy.
Question
Why does decreasing the temperature of the reactants generally result in a slower reaction rate?Question 10Select one:a.There are more collisions between reactant molecules.b.There are fewer collisions between reactant molecules.c.The reactant molecules collide with less energy.d.The reactant molecules collide with greater energy.
Solution
The answer is both b and c.
b. There are fewer collisions between reactant molecules.
When the temperature is decreased, the molecules move slower. This means they have less kinetic energy and therefore, they collide less frequently.
c. The reactant molecules collide with less energy.
In addition to colliding less frequently, when the molecules do collide, they do so with less energy. This means that the collisions are less likely to result in a reaction.
In summary, decreasing the temperature of the reactants generally results in a slower reaction rate because there are fewer collisions between reactant molecules and the collisions that do occur are less energetic.
Similar Questions
Why does decreasing the concentration of the reactants generally result in a lower reaction rate?Question 4Select one:a.There are more collisions between reactant molecules.b.The reactant molecules collide with greater energy.c.The reactant molecules collide with less energy.d.There are fewer collisions between reactant molecules.
As the temperature of a chemical reaction increases, the rate of reaction increases becauseA fewer particle collisions occurB the required activation energy increasesC more effective particle collisions occurD the concentration of the reactants increases
How do changes in temperature affect the rate of a reaction?A.Increasing temperature increases the reaction rate because the particles move faster and collide more often.B.Increasing temperature decreases the reaction rate because the particles break down into nonreactive substances.C.Decreasing temperature increases the reaction rate because the particles are more likely to react when they collide.D.Changing temperature does not affect the rate of a reaction because it does not change the activation energy.
Why does increasing temperature generally increase the rate of a chemical reaction? A. It increases the amount of reactant. B. It decreases the size of the reactant particles. C. It causes the particles of the reactants to move faster and collide more often. D. It increases the space between reactant particles, so they have more room to move apart.
How does increasing temperature increase the number of reactions?A.It lowers the amount of energy needed for a reaction to occur.B.It increases the collisions that have enough energy to react.C.It increases the length of time the molecules are together.D.It makes the orientation of the molecules not important.
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