Multiple Choice
Which of the following factors does not affect the rate of diffusion?
15. Chemical Kinetics
Factors Influencing Rates
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Which of the following factors has the greatest effect on the rate of chemical reactions in an ecosystem?
A
Surface area
B
Pressure
C
Catalyst presence
D
Temperature
Verified step by step guidance1
Identify the factors listed in the problem: surface area, pressure, catalyst presence, and temperature.
Understand that the rate of a chemical reaction is influenced by several factors, including temperature, which affects the kinetic energy of the molecules involved.
Recognize that an increase in temperature generally increases the rate of reaction because it causes molecules to move faster, leading to more frequent and energetic collisions.
Consider the role of temperature in ecosystems, where it can significantly impact biological processes and reaction rates, often more so than other factors like surface area or pressure.
Conclude that temperature has the greatest effect on the rate of chemical reactions in an ecosystem due to its direct influence on molecular motion and collision frequency.
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