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Is there any reaction for which reaction...

Is there any reaction for which reaction rate does not decrease with time?

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Rate of zero order reactions does not decrease with time.
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Is there any reaction whose rate does not decrease with time ?

Assertion : Order of a reaction with respect to any reactant can be zero, positive negative of fractional. Reason : Rate of a reaction cannot decrease with increase in concentration of a reactant or a product.

Rate equation for various reactions and their corresponding orders are given here. Choose the equation in which the rate does not depend upon the concentration of A:

Assertion (A) : For a first order, the concentration of a reaction decreases exponentially with time. Reason (R ): The rate of reaction at any time depends upon the concentration of the reactant at that time.

If the final product of the reaction is made to accumulate it decreases the rate of reaction.

ICSE-CHEMICAL KINETICS-EXERCISE (PART- II (DESCRIPTIVE QUESRTIONS) A. VERY SHORT ANSWER QUESTIONS (WITH ANSWERS ))
  1. For a reaction A to B , the rate of reaction becomes twenty seven time...

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  2. For the reaction Cl2 (g) +2 NO(g) to 2 NOCI((g)) the rate law is exp...

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  3. Is there any reaction for which reaction rate does not decrease with t...

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  4. A reaction is 50% complete in 2 hours and 75% complete in 4 hours. Wha...

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  5. The rate of reaction X to Y becomes 8 times when the concentration of...

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  6. A first order reaction is 50% complete in 20 minutes. What is its rate...

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  7. What is the order of a reaction whose rate constant has the same units...

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  8. How is half-life period of a reaction is inversely proportional to ini...

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  9. In some cases, it is found that large number of colliding molecules ha...

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  10. In the reaction Ato B , if the concentration of A is plotted against t...

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  11. What is the rate determining step of a reaction?

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  12. The kinetics for the reaction, 2NO+2H2 to N2 + 2H2O is explained by t...

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  13. Write the rate law and order for the following reaction: AB2 +C2 ...

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  14. Define Elementary step in a reaction

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  15. What is the temperature coefficient?

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  16. What are effective collisions ?

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  17. Define threshold energy.

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  18. What is the effect of catalyst on the rate of reaction ?

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  19. Define activation energy of a reaction.

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  20. How is activation energy of a reaction affected? by using a catalys...

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