Post Utme Eksu 2025 Chemistry Question 13

Practice objective / multiple choice question 13 from the 2025 Post Utme Eksu Chemistry examination.

Post Utme Eksu 2025 Chemistry Objective / Multiple Choice

Question 13 POST_UTME_EKSU • 2025 • CHEMISTRY • objective

The reaction between H2 and O2 is catalyzed by Pt. The rate cons\tant (k) for this reaction is 2.5 × 10^\( -3 \) s^\( -1 \) at 298 K. If the initial concentrations of H2 and O2 are 0.100 M and 0.0500 M, respectively, what is the rate of reaction after 5.00 s?

A. 1.25 × 10^\( -5 \) M s^\( -1 \)

B. 2.50 × 10^\( -5 \) M s^\( -1 \)

Correct Answer C. 3.75 × 10^\( -5 \) M s^\( -1 \)

D. 5.00 × 10^\( -5 \) M s^\( -1 \)

Correct Answer

Correct Option:

3.75 × 10^\( -5 \) M s^\( -1 \)

This is Post Utme Eksu 2025 Chemistry Question 13. It is one of the objective questions from the 2025 Post Utme Eksu Chemistry examination.

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