Post Utme Unn 2019 Chemistry Question 36

Practice objective / multiple choice question 36 from the 2019 Post Utme Unn Chemistry examination.

Post Utme Unn 2019 Chemistry Objective / Multiple Choice

Question 36 POST_UTME_UNN • 2019 • CHEMISTRY • objective

The rate cons\tant (k) for a first-order reaction is given by the equation: k = Ae^\( -Ea/RT \). If the activation energy (Ea) is 100 kJ/mol, the gas cons\tant (R) is 8.314 J/\( mol*K \), and the temperature (T) is 298 K, what is the value of the rate cons\tant (k) if the pre-exponential factor (A) is 1.0 x 10^10 s^\( -1 \)?

Correct Answer A. 1.0 x 10^\( -10 \) s^\( -1 \)

B. 1.0 x 10^\( -9 \) s^\( -1 \)

C. 1.0 x 10^\( -8 \) s^\( -1 \)

D. 1.0 x 10^\( -7 \) s^\( -1 \)

Correct Answer

Correct Option:

1.0 x 10^\( -10 \) s^\( -1 \)

This is Post Utme Unn 2019 Chemistry Question 36. It is one of the objective questions from the 2019 Post Utme Unn Chemistry examination.

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