Post Utme Summit University 2025 Chemistry Question 31

Practice objective / multiple choice question 31 from the 2025 Post Utme Summit University Chemistry examination.

Post Utme Summit University 2025 Chemistry Objective / Multiple Choice
Question 31 POST_UTME_SUMMIT_UNIVERSITY • 2025 • CHEMISTRY • objective

The rate cons\tant (k) for a first-order reaction is related to the half-life \( t_\( 1/2 \ \)) by the equation: \( k = \frac{ln{2}}{t_{1/2}} \). If the half-life of a reaction is 10 minutes, what is the rate cons\tant (k) in units of min^\( -1 \)?

Answer Options

Correct Answer A. 0.0693 min^\( -1 \)
B. 0.693 min^\( -1 \)
C. 6.93 min^\( -1 \)
D. 69.3 min^\( -1 \)
Correct Answer
A
Correct Option:
0.0693 min^\( -1 \)

About This Question

This is Post Utme Summit University 2025 Chemistry Question 31. It is one of the objective questions from the 2025 Post Utme Summit University Chemistry examination.

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