Post Utme Unilag 2019 Chemistry Question 6

Practice objective / multiple choice question 6 from the 2019 Post Utme Unilag Chemistry examination.

Post Utme Unilag 2019 Chemistry Objective / Multiple Choice

Question 6 POST_UTME_UNILAG • 2019 • CHEMISTRY • objective

Determine the rate cons\tant (k) for the reaction: 2NO(g) + O2(g) → 2NO2(g) at 298 K, given that the initial concentration of NO is 0.1 M and the concentration of NO2 is 0.05 M after 10 minutes.

Answer Options

Correct Answer A. \( k = \frac{2.303}{t} \log \frac{[NO]_0}{[NO]_t} \)

B. \( k = \frac{2.303}{t} \log \frac{[NO]_t}{[NO]_0} \)

C. \( k = \frac{2.303}{t} \log \frac{[NO]_0}{[NO]_t} \times \frac{[O_2]_0}{[O_2]_t} \)

D. \( k = \frac{2.303}{t} \log \frac{[NO]_t}{[NO]_0} \times \frac{[O_2]_t}{[O_2]_0} \)

Correct Answer

Correct Option:

\( k = \frac{2.303}{t} \log \frac{[NO]_0}{[NO]_t} \)

About This Question

This is Post Utme Unilag 2019 Chemistry Question 6. It is one of the objective questions from the 2019 Post Utme Unilag Chemistry examination.

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