Post Utme Uniport 2025 Chemistry Question 35

Practice objective / multiple choice question 35 from the 2025 Post Utme Uniport Chemistry examination.

Post Utme Uniport 2025 Chemistry Objective / Multiple Choice
Question 35 POST_UTME_UNIPORT • 2025 • CHEMISTRY • objective

Determine the rate cons\tant (k) for the reaction: A → B + C, given that the initial concentration of A is 0.1 M and the concentration of B at time t = 10 min is 0.05 M. The rate law is first order with respect to A.

Answer Options

Correct Answer A. \( k = \frac{2.303}{t} \log \frac{[A]_0}{[A]_t} \)
B. \( k = \frac{2.303}{t} \log \frac{[B]_t}{[B]_0} \)
C. \( k = \frac{[A]_0 - [A]_t}{t} \)
D. \( k = \frac{[B]_t}{t} \)
Correct Answer
A
Correct Option:
\( k = \frac{2.303}{t} \log \frac{[A]_0}{[A]_t} \)

About This Question

This is Post Utme Uniport 2025 Chemistry Question 35. It is one of the objective questions from the 2025 Post Utme Uniport Chemistry examination.

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