A Particular First-Order Reaction Has a Rate Constant of 1 $10 ^ { 2 }$

question 68

Multiple Choice

A particular first-order reaction has a rate constant of 1.35 × $10 ^ { 2 }$ $s ^ { - 1 }$ at 25.0 °C.What is the magnitude of k at 75.0 °C if $E_{\mathrm{a}}=82.5 \mathrm{~kJ} \mathrm{~mol}^{-1} ?$

• A)1.61 × 10⁴ s^-1
• B)646 s^-1
• C)1.11 × 10¹¹⁷ s^-1
• D)6.19 × 10^-5 s^-1
• E)1.36 × 10² s^-1

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Definitions:

Major Product

The main substance produced in the greatest quantity from a chemical reaction.

Stereoisomeric Forms

Different forms of a compound that have the same structural formula but different arrangements of atoms in space.

Allylic Bromides

Organic compounds containing a bromine atom bonded to an allylic position, which is one carbon away from a double bond in a hydrocarbon chain.

2-Methylpent-1-Ene

An organic compound characterized by a six-carbon chain with a double bond starting from the first carbon and a methyl group on the second carbon.