Post Utme Uniosun 2025 Chemistry Question 29

Practice objective / multiple choice question 29 from the 2025 Post Utme Uniosun Chemistry examination.

Post Utme Uniosun 2025 Chemistry Objective / Multiple Choice
Question 29 POST_UTME_UNIOSUN • 2025 • CHEMISTRY • objective

The rate cons\tant (k) of 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, calculate 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 Uniosun 2025 Chemistry Question 29. It is one of the objective questions from the 2025 Post Utme Uniosun 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