Post Utme Rhema University 2017 Chemistry Question 2

Practice objective / multiple choice question 2 from the 2017 Post Utme Rhema University Chemistry examination.

Post Utme Rhema University 2017 Chemistry Objective / Multiple Choice
Question 2 POST_UTME_RHEMA_UNIVERSITY • 2017 • CHEMISTRY • objective

The half-life of a radioactive subs\tance is 5 years. If 100 g of the subs\tance initially decays to 50 g after 5 years, what is the decay cons\tant (λ) of the subs\tance?

Answer Options

Correct Answer A. 0.139 yr^{-1}
B. 0.139 yr^{-1}
C. 0.139 yr^{-1}
D. 0.139 yr^{-1}
Correct Answer
A
Correct Option:
0.139 yr^{-1}

About This Question

This is Post Utme Rhema University 2017 Chemistry Question 2. It is one of the objective questions from the 2017 Post Utme Rhema University Chemistry examination.

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