A certain reaction is known to have an activation energy E=9.0 kJ/mol. Furthermore, the rate of this reaction is measured at 370. K and found to be 5.4 x 107 M/s. Use this information to answer the questions in the table below. Suppose the concentrations of all reactants is kept the same, but the temperature is lowered by 10% from 370. K to 333. K. How will the rate of the reaction change? Suppose the concentrations of all reactants is kept the same, but the catalyst is added, which has the effect of lowering the activation energy by 10%, from 9.0 kJ/mol to 8.10 kJ/mol. How will the rate of the reaction change? The rate will The rate will choose one choose one 0 ©

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A certain reaction is known to have an activation energy E-9.0 kJ/mol. Furthermore, the rate of this reaction is measured at 370. K and found to be
5.4 x 107 M/s. Use this information to answer the questions in the table below.
Suppose the concentrations of all reactants is
kept the same, but the temperature is lowered
by 10% from 370. K to 333. K.
How will the rate of the reaction change?
Suppose the concentrations of all reactants is
kept the same, but the catalyst is added, which
has the effect of lowering the activation energy
by 10%, from 9.0 kJ/mol to 8.10 kJ/mol.
How will the rate of the reaction change?
The rate will
The rate will
choose one
choose one
X
5
◊
ŵ
Transcribed Image Text:A certain reaction is known to have an activation energy E-9.0 kJ/mol. Furthermore, the rate of this reaction is measured at 370. K and found to be 5.4 x 107 M/s. Use this information to answer the questions in the table below. Suppose the concentrations of all reactants is kept the same, but the temperature is lowered by 10% from 370. K to 333. K. How will the rate of the reaction change? Suppose the concentrations of all reactants is kept the same, but the catalyst is added, which has the effect of lowering the activation energy by 10%, from 9.0 kJ/mol to 8.10 kJ/mol. How will the rate of the reaction change? The rate will The rate will choose one choose one X 5 ◊ ŵ
Expert Solution
Step 1: Arrhenius equation

Answer:

These problems will be solved by using below shown forms of Arrhenius equation.

When activation energy remains the same but temperature changes then:

ln straight k subscript 2 over straight k subscript 1 equals straight E subscript straight a over straight R open parentheses 1 over straight T subscript 1 minus 1 over straight T subscript 2 close parentheses space space space space space..... equation left parenthesis 1 right parenthesis

When temperature remains the same but activation energy changes then:

ln straight k subscript 2 over straight k subscript 1 equals 1 over RT left parenthesis straight E subscript straight a subscript 1 end subscript minus straight E subscript straight a subscript 2 end subscript right parenthesis space space space.... equation left parenthesis 2 right parenthesis

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