Rates of Chemical Reaction - Jamb Chemistry Past Questions and Answers

Question 81:

• JAMB 2019

In the reaction:
M + N → P
ΔH = +Q kJ
Which of the following would increase the concentration of the product?

A. Adding a suitable catalyst
B. Increasing the concentration of P
C. Increasing the temperature
D. Decreasing the temperature

Question 82:

• JAMB 2019

Consider the reaction: A + 2B\(_{(g)} \rightleftharpoons \) 2C + D\(_{(g)}\) (\(\Delta\)H = +ve)
What will be the effect of decrease in temperature on the reaction?

A. Rate of backward reaction will increase
B. The equilibrium constant will shift
C. Rates of forward and backward reactions are not affected
D. Rate of forward reaction will increase