Multiple Choice
Which of the following best explains why increasing the temperature generally increases the rate of a chemical reaction?
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15. Chemical Kinetics
Factors Influencing Rates
Multiple Choice
Which of the following will NOT affect the rate of a reaction between a solid and a liquid?
A
The concentration of the liquid reactant
B
The temperature of the system
C
The color of the solid
D
The surface area of the solid
Verified step by step guidance1
Understand that the rate of a reaction depends on factors that influence how often and how energetically reactant particles collide.
Recognize that the concentration of the liquid reactant affects the rate because higher concentration means more particles per unit volume, leading to more frequent collisions.
Know that temperature affects the rate by increasing the kinetic energy of particles, which increases both collision frequency and the fraction of collisions with enough energy to react.
Realize that the surface area of the solid affects the rate because increasing surface area exposes more solid particles to the liquid, allowing more collisions to occur.
Identify that the color of the solid does NOT affect the reaction rate because color is a physical property unrelated to particle collisions or energy in the reaction context.
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