Without a catalyst, the activation energy of a reaction is 162.9 kJ/mol. With a catalyst, the activation energy is 92.8 kJ/mol. Assuming the frequency factor (A) and the initial concentrations of all reactants are the same for each reaction, how many times faster is the initial rate of the catalyzed reaction at 37.4°C? IMPORTANT: When entering your answer: • Enter whole numbers only (no spaces, letters, or other characters) • Enter a number for the coefficient rounded to the units column (regardless of significant figures) • Enter a number for the power of 10 (the exponent only)

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Without a catalyst, the activation energy of a reaction is 162.9
kJ/mol. With a catalyst, the activation energy is 92.8 kJ/mol.
Assuming the frequency factor (A) and the initial concentrations
of all reactants are the same for each reaction, how many times
faster is the initial rate of the catalyzed reaction at 37.4°C?
IMPORTANT: When entering your answer:
• Enter whole numbers only (no spaces, letters, or other
characters)
• Enter a number for the coefficient rounded to the units
column (regardless of significant figures)
• Enter a number for the power of 10 (the exponent only)
Example: for 6.022 x 102, you would enter 6 and 23
The catalyzed rate is
× 10^
times faster than the uncatalyzed
rate
Transcribed Image Text:Without a catalyst, the activation energy of a reaction is 162.9 kJ/mol. With a catalyst, the activation energy is 92.8 kJ/mol. Assuming the frequency factor (A) and the initial concentrations of all reactants are the same for each reaction, how many times faster is the initial rate of the catalyzed reaction at 37.4°C? IMPORTANT: When entering your answer: • Enter whole numbers only (no spaces, letters, or other characters) • Enter a number for the coefficient rounded to the units column (regardless of significant figures) • Enter a number for the power of 10 (the exponent only) Example: for 6.022 x 102, you would enter 6 and 23 The catalyzed rate is × 10^ times faster than the uncatalyzed rate
Expert Solution
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Catalyst is a substance that can increase the rate of a reaction but itself remains unchanged in amount and chemical composition at the end of the reaction. Catalyst increase the rate of reaction by providing a lower energy barrier.

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