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What is the temperature coefficient?...

What is the temperature coefficient?

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Temperature coefficient of a reaction is the ratio of the velocity constants of the reaction at two temperatures differing by `10^@`C (usually `25^@ `C and `35^@` C)
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A heating element has a resistance of 100 Omega at room temperature. When it is connected to a supply of 220 V, a steady current of 2A passes in it and temperature is 500^(@)C more than room temperature. What is the temperature coefficient of resistance of the heating element ?

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ICSE-CHEMICAL KINETICS-EXERCISE (PART- II (DESCRIPTIVE QUESRTIONS) A. VERY SHORT ANSWER QUESTIONS (WITH ANSWERS ))
  1. Write the rate law and order for the following reaction: AB2 +C2 ...

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  2. Define Elementary step in a reaction

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  3. What is the temperature coefficient?

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  4. What are effective collisions ?

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  5. Define threshold energy.

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

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  7. Define activation energy of a reaction.

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

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  9. How is activation energy of a reaction affected by increasing the te...

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

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  11. The reaction 2 H2(g) + O2(aq) to 2 H2 O(l) is thermodynamically feasi...

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  12. The activation energy of a reaction is zero. Will the rate constant of...

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  13. Is there any participation of the catalyst in the chemical process?

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  14. How does a catalyst work?

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  15. State the rate law of chemical reactions.

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  16. What is an elementary reaction?

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  17. Define order of a reaction.

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  18. What is meant by molecularity of a reaction ?

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  19. For the reaction 2X to X2, the rate of reaction becomes three times w...

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  20. Why hydrolysis of ethyl acetate with NaOH follows second order kinetic...

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