1) Calculate the activation energy in kJ/mol for the following reaction if the rate constant for...
1) Calculate the activation energy in kJ/mol for the following reaction if the rate constant for the reaction increases from 93.5 M-1s-1 at 497.7 K to 1349.3 M-1s-1 at 636.7 K.
do not include units, but make sure your answer is in kJ/mol!
2) A chemist constructs a plot of ln k vs. 1/T for a chemical reaction. The slope of the trendline for the data is -746 K. What is the activation energy for this reaction in kJ/mol?
R = 8.314 J/(mol*K)
Be sure to include units in your answer!
3) For an endothermic reaction, ΔH is 12.9 kJ/mol. The Ea value for the forward reaction is 16.0 kJ/mol. What is the activation energy for the reverse reaction? Be sure to include units with your answer!
4) A rate constant obeys the Arrhenius equation, the factor A being 3.3 x 1013 s-1 and the activation energy being 167.3 kJ mol-1. What is the value of the rate constant at 231.7 °C, in s-1?
do not worry about including units in your answer
Homework Answers
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1) Calculate the activation energy in kJ/mol for the following
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The activation energy, Ea, for a particular reaction is 19.4 kJ/mol. If the rate constant at...
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Part A A certain reaction has an activation energy of 67.0 kJ/mol and a frequency factor of A1 = 1.40×1012 M−1s−1 . What is the rate constant, k, of this reaction at 28.0 ∘C ? Express your answer with the appropriate units. Indicate the multiplication of units explicitly either with a multiplication dot (asterisk) or a dash. k = Part B An unknown reaction was observed, and the following data were collected: T (K) k (M−1⋅s−1) 352 109 426 185...
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