Multiple Choice
Which of the following best describes the effect of increasing temperature on the rate of a chemical reaction?
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15. Chemical Kinetics
Factors Influencing Rates
Multiple Choice
Which of the following is a way to increase the rate of a chemical reaction?
A
Reduce the surface area of solid reactants
B
Remove any catalyst present
C
Increase the concentration of reactants
D
Decrease the temperature
Verified step by step guidance1
Understand that the rate of a chemical reaction depends on factors such as concentration, temperature, surface area, and the presence of catalysts.
Recall that increasing the concentration of reactants generally increases the frequency of collisions between reactant molecules, which can increase the reaction rate.
Recognize that reducing the surface area of solid reactants decreases the area available for collisions, which typically slows down the reaction.
Know that removing a catalyst eliminates a substance that lowers the activation energy, so this usually decreases the reaction rate.
Understand that decreasing the temperature reduces the kinetic energy of molecules, leading to fewer effective collisions and a slower reaction rate.
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