The figure below shows how the rate of the following reaction varies with the time.
i) Which of the two curves represent the rate of the reverse reaction? Give a reason
ii) What is the significance of point X and Y on the figure?
b) State and explain the effect of an increase in pressure on the rates of the following reactions.
i) On a grid plot a graph of volume of gas produced (vertical axis) against time
ii) From the graph, determine the rate of the reaction at:
(I) 15 seconds
(II) 120 seconds
(III) Give a reason for the difference between the two values.
The concentration of products are increasing
The rate of reaction is increasing.
At time x equilibrium has been established, the rate of forward reaction is equal to the rate of reverse reaction and this has a value of Y.
(b)(i) Increasing pressure increases rate of reaction.
Molecules are brought closer, more collision of gases particles.
Increasing pressure has no effect on liquids.
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