Post Utme Abu 2019 Chemistry Question 11

Practice objective / multiple choice question 11 from the 2019 Post Utme Abu Chemistry examination.

Post Utme Abu 2019 Chemistry Objective / Multiple Choice

Question 11 POST_UTME_ABU • 2019 • CHEMISTRY • objective

Determine the rate cons\tant (k) for the first-order reaction: A → B, given that the initial concentration of A is 0.1 M and the concentration of A after 2 hours is 0.05 M. The rate cons\tant is related to the half-life \( t1/2 \) of the reaction by the equation: k = ln(2) / t1/2.

Correct Answer A. 0.693 h^-1

B. 1.386 h^-1

C. 2.772 h^-1

D. 3.464 h^-1

Correct Answer

Correct Option:

0.693 h^-1

This is Post Utme Abu 2019 Chemistry Question 11. It is one of the objective questions from the 2019 Post Utme Abu Chemistry examination.

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