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On the basis of heat of combustion value...

On the basis of heat of combustion values, graphite is more stable than diamond. However, diamond does not change into graphite for years together.

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Explore conceptually related problems

On the basis of enthalpy of formation, graphite is more stable than diamond, yet diamond does not change into graphite for years. Why ?

Thermodynamically graphite is more stable than diamond but diamond does not transform into graphite on its own. Why?

is Graphite isostructural with diamond?

The heat of combustion of carbon (graphite) is not equal to that of carbon (diamond).

Diamond And Graphite

Diamond and Graphite are

Diamond is harder than graphite.

Assertion (A) : Graphite is chemically more reactive than diamond . Reason (R) : Diamond is very hard but fraphite si soof .

What is common in graphite and diamond:

Assertion (A): Enthalpy of graphite is lower than that of diamond. Reason (R ) : Entropy of graphite is lower than that of diamond.

ICSE-CHEMICAL KINETICS-EXERCISE (PART- II (DESCRIPTIVE QUESRTIONS) B. SHORT ANSWER QUESTIONS )
  1. What are simple reactions and what are complex reactions in chemical k...

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  2. How do we know that not all collisions between reactant molecules lead...

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  3. A reaction proceeds through several fast and slow steps. Which of the ...

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  4. Which among the following is the most appropriate statement about coll...

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  5. Consider the following reaction between NO2 and F2, 2NO2 +F2 to 2NO2 F...

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  6. From the following mechanism of a complex reaction, find out the order...

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  7. Nitric oxide reacts with hydrogen to give nitrogen and water: 2NO ...

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  8. Nitric oxide reacts with oxygen to produce nitrogen dioxide. 2NO (...

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  9. Define the terms threshold energy and activation energy. Using the con...

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  10. Draw a representative reaction curve for an exothermic reaction and (i...

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  11. Equal amount of a reactant were taken in two closed flasks of same cap...

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  12. How do temperature and the presence of a catalyst bring about an incre...

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  13. On the basis of heat of combustion values, graphite is more stable tha...

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  14. What is the effect of light radiations on reaction rates?

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  15. Comment on the following statements. Endothermic reactions have hig...

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  16. Comment on the following statements. A reaction with a higher activ...

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  17. Comment on the following statements. CH4 does not react with oxygen...

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  18. Discuss the effect of catalyst on the activation energy.

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  19. What is activation energy? How is the rate constant of a reaction rela...

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  20. What is an activated complex ? Explain with the help of a suitable exa...

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