51. The major reason an increase in temperature causes an increase in reaction rate is that (A) the activation energy changes with temperature (B) the fraction of high energy molecules increases (C) molecules collide with greater frequency (D) catalysts become more effective 52. Catalysts effectively increase reaction rate by (A) increasing the Keq (B) increasing the concentration of the reactant (C) decreasing the concentration of the products (D) lowering the activation energy requirements

Chemistry
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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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Please help me answer these 2
U) L.0 X 10
L IMOI
Imin
51. The major reason an increase in
temperature causes an increase in
reaction rate is that
(A) the activation energy changes
with temperature
(B) the fraction of high energy
molecules increases
(C) molecules collide with greater
frequency
(D) catalysts become more effective
52. Catalysts effectively increase
reaction rate by
(A) increasing the Keq
(B) increasing the concentration of
the reactant
(C) decreasing the concentration of
the products
(D) lowering the activation energy
requirements
53 For all zer e ordon nog ationg
Transcribed Image Text:U) L.0 X 10 L IMOI Imin 51. The major reason an increase in temperature causes an increase in reaction rate is that (A) the activation energy changes with temperature (B) the fraction of high energy molecules increases (C) molecules collide with greater frequency (D) catalysts become more effective 52. Catalysts effectively increase reaction rate by (A) increasing the Keq (B) increasing the concentration of the reactant (C) decreasing the concentration of the products (D) lowering the activation energy requirements 53 For all zer e ordon nog ationg
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