Post Utme Unilorin 2020 Chemistry Question 11

Practice objective / multiple choice question 11 from the 2020 Post Utme Unilorin Chemistry examination.

Post Utme Unilorin 2020 Chemistry Objective / Multiple Choice
Question 11 POST_UTME_UNILORIN • 2020 • CHEMISTRY • objective

The rate cons\tant of a first-order reaction is given by the equation \( k = Ae^{-E_a/RT} \). If the activation energy \( E_a \) is 100 kJ/mol, the gas cons\tant ( R ) is 8.314 J/\( mol*K \), and the temperature ( T ) is 300 K, what is the value of the pre-exponential factor ( A ) if the rate cons\tant ( k ) is 0.05 s\( ^{-1} \)?

Answer Options

Correct Answer A. \( 1.23 \times 10^{10} \)
B. \( 1.23 \times 10^{12} \)
C. \( 1.23 \times 10^{14} \)
D. \( 1.23 \times 10^{16} \)
Correct Answer
A
Correct Option:
\( 1.23 \times 10^{10} \)

About This Question

This is Post Utme Unilorin 2020 Chemistry Question 11. It is one of the objective questions from the 2020 Post Utme Unilorin Chemistry examination.

View More Post Utme Unilorin 2020 Chemistry Questions More Post Utme Unilorin Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support