Post Utme Pan Atlantic University 2023 Chemistry Question 1

Practice objective / multiple choice question 1 from the 2023 Post Utme Pan Atlantic University Chemistry examination.

Post Utme Pan Atlantic University 2023 Chemistry Objective / Multiple Choice
Question 1 POST_UTME_PAN-ATLANTIC_UNIVERSITY • 2023 • CHEMISTRY • objective

Determine the rate cons\tant (k) for the reaction: 2NO(g) + O2(g) → 2NO2(g), given that the initial concentrations of NO and O2 are 0.1 M and 0.2 M, respectively, and the rate of reaction is 0.05 M/s after 10 minutes.

Answer Options

A. \( k = \frac{2.303}{t} \log left\( \frac{[NO]_0 [O_2]_0}{[NO_2]_t} \right \ \) )
B. \( k = \frac{2.303}{t} \log left\( \frac{[NO_2]_t}{[NO]_0 [O_2]_0} \right \ \) )
Correct Answer C. \( k = \frac{2.303}{t} \log left\( \frac{[NO]_0 [O_2]_0}{[NO_2]_t} \right \ \) )
D. \( k = \frac{2.303}{t} \log left\( \frac{[NO_2]_t}{[NO]_0 [O_2]_0} \right \ \) )
Correct Answer
C
Correct Option:
\( k = \frac{2.303}{t} \log left\( \frac{[NO]_0 [O_2]_0}{[NO_2]_t} \right \ \) )

About This Question

This is Post Utme Pan Atlantic University 2023 Chemistry Question 1. It is one of the objective questions from the 2023 Post Utme Pan Atlantic University Chemistry examination.

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