The first-order isomerization of cis-but-2-ene to trans-but-2-ene was • Part A studied at 723 K. The Arrhenius pre-exponential factor, A, was found to be 6.1 x 1013s-'and the activation energy, Ea is 260 kJ mol! What is the rate constant at 723 K? Express your answer using two significant figures. Templates Symbols uado redo resat keyboard shortcuts help k = Submit Request Answer • Part B If the temperature of a pure sample of cis-but-2-ene was increased to 723 K, how long would it take for 35.0 % of the sample to isomerize? Express your answer to two significant figures and include the appropriate units. Templates Symbols ugdo redo reset keyboard shortcuts help, t = Value Units

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Part A
The first-order isomerization of cis-but-2-ene to trans-but-2-ene was
studied at 723 K. The Arrhenius pre-exponential factor, A, was found to
be 6.1 x 1013s-land the activation energy, Ea is 260 kJ mol
What is the rate constant at 723 K?
Express your answer using two significant figures.
Templates Symbols uado redo reset keyboard shortcuts help
k =
Submit
Request Answer
Part B
If the temperature of a pure sample of cis-but-2-ene was increased to 723 K, how long would it take for 35.0o % of the sample to isomerize?
Express your answer to two significant figures and include the appropriate units.
Templates Symbols ugdo redo reset keyboard shortcuts help
t =
Value
Units
Transcribed Image Text:Part A The first-order isomerization of cis-but-2-ene to trans-but-2-ene was studied at 723 K. The Arrhenius pre-exponential factor, A, was found to be 6.1 x 1013s-land the activation energy, Ea is 260 kJ mol What is the rate constant at 723 K? Express your answer using two significant figures. Templates Symbols uado redo reset keyboard shortcuts help k = Submit Request Answer Part B If the temperature of a pure sample of cis-but-2-ene was increased to 723 K, how long would it take for 35.0o % of the sample to isomerize? Express your answer to two significant figures and include the appropriate units. Templates Symbols ugdo redo reset keyboard shortcuts help t = Value Units
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