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Just before attaining equilibrium by a reversible reaction, it is found that
- a)velocity of both forward and backward reactions decrease
- b)velocity of both forward and backward reactions increase
- c)velocity of forward reaction decreases but backward reaction increases
- d)velocity of forward reaction decreases but backward reaction decreases
Correct answer is option 'C'. Can you explain this answer?
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Just before attaining equilibrium by a reversible reaction, it is foun...
Because that tendency of the following reactions is also completed and almost completed and the the velocity of the reactions in forward direction is also decreases and the backward reactions velocity is also increases and tendency of backward reactions is increases
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Just before attaining equilibrium by a reversible reaction, it is foun...
Before attaining equilibrium in a reversible reaction, the velocity of both the forward and backward reactions undergo changes. These changes can be explained by considering the factors that affect the rates of reactions.
Factors affecting the rates of reactions:
1. Concentration: The rate of a reaction is directly proportional to the concentration of the reactants. As the reaction progresses towards equilibrium, the concentration of the reactants decreases, resulting in a decrease in the rate of the forward reaction.
2. Temperature: Increasing the temperature generally increases the rate of a reaction. However, as the reaction approaches equilibrium, the temperature remains constant. Therefore, the rate of both the forward and backward reactions will not be affected by temperature.
3. Pressure (For gaseous reactions): In the case of gaseous reactions, changing the pressure can affect the rates of the forward and backward reactions. However, just before equilibrium, the pressure remains constant, so the rate of both reactions will not be affected by pressure.
Explanation of the given answer:
a) Velocity of both forward and backward reactions decrease: This option is incorrect because the rate of the backward reaction increases as the reaction progresses towards equilibrium.
b) Velocity of both forward and backward reactions increase: This option is incorrect because the rate of the forward reaction decreases as the reaction approaches equilibrium.
c) Velocity of forward reaction decreases but backward reaction increases: This option is correct. As the reaction approaches equilibrium, the concentration of the reactants decreases. This leads to a decrease in the rate of the forward reaction. However, the concentration of the products increases, resulting in an increase in the rate of the backward reaction.
d) Velocity of forward reaction decreases but backward reaction decreases: This option is incorrect because the rate of the backward reaction increases as the reaction progresses towards equilibrium.
In conclusion, just before attaining equilibrium in a reversible reaction, the velocity of the forward reaction decreases while the velocity of the backward reaction increases. This is due to the changes in reactant and product concentrations as the reaction approaches equilibrium.
Factors affecting the rates of reactions:
1. Concentration: The rate of a reaction is directly proportional to the concentration of the reactants. As the reaction progresses towards equilibrium, the concentration of the reactants decreases, resulting in a decrease in the rate of the forward reaction.
2. Temperature: Increasing the temperature generally increases the rate of a reaction. However, as the reaction approaches equilibrium, the temperature remains constant. Therefore, the rate of both the forward and backward reactions will not be affected by temperature.
3. Pressure (For gaseous reactions): In the case of gaseous reactions, changing the pressure can affect the rates of the forward and backward reactions. However, just before equilibrium, the pressure remains constant, so the rate of both reactions will not be affected by pressure.
Explanation of the given answer:
a) Velocity of both forward and backward reactions decrease: This option is incorrect because the rate of the backward reaction increases as the reaction progresses towards equilibrium.
b) Velocity of both forward and backward reactions increase: This option is incorrect because the rate of the forward reaction decreases as the reaction approaches equilibrium.
c) Velocity of forward reaction decreases but backward reaction increases: This option is correct. As the reaction approaches equilibrium, the concentration of the reactants decreases. This leads to a decrease in the rate of the forward reaction. However, the concentration of the products increases, resulting in an increase in the rate of the backward reaction.
d) Velocity of forward reaction decreases but backward reaction decreases: This option is incorrect because the rate of the backward reaction increases as the reaction progresses towards equilibrium.
In conclusion, just before attaining equilibrium in a reversible reaction, the velocity of the forward reaction decreases while the velocity of the backward reaction increases. This is due to the changes in reactant and product concentrations as the reaction approaches equilibrium.
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Just before attaining equilibrium by a reversible reaction, it is found thata)velocity of both forward and backward reactions decreaseb)velocity of both forward and backward reactions increasec)velocity of forward reaction decreases but backward reaction increasesd)velocity of forward reaction decreases but backward reaction decreasesCorrect answer is option 'C'. Can you explain this answer?
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Just before attaining equilibrium by a reversible reaction, it is found thata)velocity of both forward and backward reactions decreaseb)velocity of both forward and backward reactions increasec)velocity of forward reaction decreases but backward reaction increasesd)velocity of forward reaction decreases but backward reaction decreasesCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Just before attaining equilibrium by a reversible reaction, it is found thata)velocity of both forward and backward reactions decreaseb)velocity of both forward and backward reactions increasec)velocity of forward reaction decreases but backward reaction increasesd)velocity of forward reaction decreases but backward reaction decreasesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Just before attaining equilibrium by a reversible reaction, it is found thata)velocity of both forward and backward reactions decreaseb)velocity of both forward and backward reactions increasec)velocity of forward reaction decreases but backward reaction increasesd)velocity of forward reaction decreases but backward reaction decreasesCorrect answer is option 'C'. Can you explain this answer?.
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