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Explain : (i) One gram of pulverised woo...

Explain : (i) One gram of pulverised wood burns faster than a one gram piece of wood.
(ii) An increase of 10 K in temperature rarely doubles the kinetic energy of particles but this increase in temperature may be enough to double the rate of reaction.

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The rate constant of the chemical reaction doubled for an increase of 10 k in absolute temperature from 295 k. Calculate the (activation energy), E_(a).

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Knowledge Check

  • The rate constant of the chemical reaction doubled for an increase of 10 k in absolute temperature from 295 k. Calculate the (activation energy), E_(a).

    A
    `51.8kJ" mol"^(-1)`
    B
    `82.1kJ" mol"^(-1)`
    C
    `23.8kJ" mol"^(-1)`
    D
    `62.1kJ" mol"^(-1)`

  • In a zero-order reaction for every 10^@ C rise of temperature, the rate is doubled. If the temperature is increased from 10^@ C to 100^@ C, the rate of the reaction will become

    A
    256 times
    B
    512 times
    C
    64 times
    D
    128 times.

  • In a zero-order reaction for every 10^(@) C rise of temperature, the rate is doubled. If the temperature is increased from 10^(@) C to 100^(@) C, the rate of the reaction will become:

    A
    128 times
    B
    256 times
    C
    512 times
    D
    64 times