Multiple Choice
Which of the following factors has the greatest effect on the rate of chemical reactions in an ecosystem?
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15. Chemical Kinetics
Factors Influencing Rates
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Which of the following factors does not influence the rate of diffusion?
A
Temperature
B
Concentration gradient
C
Color of the substance
D
Surface area
Verified step by step guidance1
Understand the concept of diffusion: Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration.
Identify factors that influence diffusion: Common factors include temperature, concentration gradient, and surface area.
Analyze the effect of temperature: Higher temperatures increase the kinetic energy of particles, leading to faster diffusion.
Consider the concentration gradient: A steeper concentration gradient results in a faster rate of diffusion as particles move to equalize concentrations.
Evaluate the role of color: The color of a substance does not affect the kinetic energy or movement of particles, and thus does not influence the rate of diffusion.
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