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There is no bar on the collisions among ...

There is no bar on the collisions among the reacting species. Why most of the reactions donot take place under normal conditions?

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The reaction species must have energy equal to `E^(@)` and they must be also properly oriented.
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Which of the following species does not exist under normal conditions?

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Knowledge Check

  • Fermentation takes place under anaerobic conditions in

    A
    Many prokaryotes
    B
    Unicellular eukaryotes
    C
    Germinating seeds
    D
    All of the above

  • Which one of the following species does not exist under normal conditions ?

    A
    `Li_(2)`
    B
    `Be_(2)^(+)`
    C
    `Be_(2)`
    D
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  • Which one of the following species does not exist under normal conditions?

    A
    `Be_2^(+)`
    B
    `Be_2`
    C
    `B_2`
    D
    `Li_2`

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    Which among the following reactions is an example of instantaneous reaction under normal conditions ?

    According to the collision theory, only the effective collisions among the reacting species result in the products. In order that the collisions may be effective, the reacting species must have energy equal to or more than a certain minimum energy called threshold energy (E^(@)) . Extra energy which has be supplied to the reactants to make collisions effective is known as activation energy (E_(a)) . This is related to reaction rate with the help of Arrhenius equation, k=Ae^(-Ea//RT) The equation also helps in calculating the activation energy for a reaction at a specific temperature. In general, the rate of reaction is inversely proportional to the activation energy required. An increase in reaction rate with rise in temperature is due to

    According to the collision theory, only the effective collisions among the reacting species result in the products. In order that the collisions may be effective, the reacting species must have energy equal to or more than a certain minimum energy called threshold energy (E^(@)) . Extra energy which has be supplied to the reactants to make collisions effective is known as activation energy (E_(a)) . This is related to reaction rate with the help of Arrhenius equation, k=Ae^(-Ea//RT) The equation also helps in calculating the activation energy for a reaction at a specific temperature. In general, the rate of reaction is inversely proportional to the activation energy required. The chemical reactions in which the reactants require high amount of activation energy are generally.

    According to the collision theory, only the effective collisions among the reacting species result in the products. In order that the collisions may be effective, the reacting species must have energy equal to or more than a certain minimum energy called threshold energy (E^(@)) . Extra energy which has be supplied to the reactants to make collisions effective is known as activation energy (E_(a)) . This is related to reaction rate with the help of Arrhenius equation, k=Ae^(-Ea//RT) The equation also helps in calculating the activation energy for a reaction at a specific temperature. In general, the rate of reaction is inversely proportional to the activation energy required. Which of the following expressions gives the effect of temperature on the reaction rate?

    According to the collision theory, only the effective collisions among the reacting species result in the products. In order that the collisions may be effective, the reacting species must have energy equal to or more than a certain minimum energy called threshold energy (E^(@)) . Extra energy which has be supplied to the reactants to make collisions effective is known as activation energy (E_(a)) . This is related to reaction rate with the help of Arrhenius equation, k=Ae^(-Ea//RT) The equation also helps in calculating the activation energy for a reaction at a specific temperature. In general, the rate of reaction is inversely proportional to the activation energy required. The plot of log k Vs 1//T helps to calculate

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