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Which change is likely to increase the
a. decreasing the temperature
b. increasing the concentration of the reactants
c. increasing the volume of the reaction vessel
d. none of the above
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Interpretation:
The change that is likely to increase the rate of reaction in a reaction mixture is to be identified.
Concept Introduction:
Le Chatelier’s principles states that if a system at equilibrium is disturbed then the systemis shift in a direction which minimizes the disturbance.
The rate of reaction is defined as the quantity of reactant that converts to product in certain time period.
There are two types of reactions such as fast reaction and slow reaction. The reaction which proceeds quickly is the fast reaction and the reaction which proceeds slowly is slow reaction.
Answer to Problem 1SAQ
Correct answer: Option (b) is correct.
Explanation of Solution
Reason for correct option: The increase in concentration of reactant will shift the equilibrium in the direction of product formation which increasesthe rate of reaction.Thus, on increasing the concentration of reactant,the rate of reaction also increases.
Therefore, option (b) is correct
Reasons for incorrect options: Option (a) is incorrect because on decreasing the temperature, the rate of a chemical reaction also decreases. So, it is a wrong answer.
Option (c) is incorrect because on increasing the volume, concentration of reactant molecule decreases and result a decrease in rate of reaction.
Option (d) is incorrect as correct answer lies in option (b).
Thus, theoptions (a), (c) and (d) are incorrect.
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