Rates of Chemical Reaction - Jamb Chemistry Past Questions and Answers

Question 31:

• JAMB 1991

The data in the table above shows the rate of reaction of nitrogen (ll) oxide with chlorine at 25^oC It can be concluded that doubling the initial concentration of NO increase the rate of reaction by a factor of

A. Two
B. Three
C. Four
D. Five

Question 32:

• JAMB 1992

How many grams of H₂SO₄ are necessary for the preparation of 0.175 dm³ of M 6.00 M H₂SO₄?
(S = 32.06, O = 16.00 H = 1.00)

A. 206.0 g
B. 103.0 g
C. 98.1 g
D. 51.5 g

Question 33:

• JAMB 1994

To what temperature must a gas 273 K be heated in order to double both its volume and pressure?

A. 298 K
B. 546 K
C. 819 K
D. 1092 K

Question 34:

• JAMB 1994

An increase in temperature causes an increase in the pressure of a gas because?

A. It decreases the number of collision between the molecules
B. The molecules of the gas bombard the walls of the container more frequently
C. It increases the number of collision between the molecules
D. It causes the molecules to combine

Question 35:

• JAMB 1994

In the diagram above the activation energy is represented by

A. Y - x
B. X
C. X - z
D. Y