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Calculate how long a hydrogen atom will ...

Calculate how long a hydrogen atom will remain on the surface of a solid at `298` K if its desorption activatino energy is (a) `15 kJmol ^(-1)` (b) 150 kJ `mol^(-1).` Assume that `tau_(0)=10^(-13)` s. Also calculate the results at 1000 K. What do you conclude from your results ?

Text Solution

AI Generated Solution

To solve the problem, we will use the Arrhenius equation for desorption, which relates the time a hydrogen atom remains on the surface of a solid to the activation energy for desorption and the temperature. The equation is given by: \[ \log \tau = \log \tau_0 + \frac{A}{2.303RT} \] Where: - \(\tau\) is the time the atom remains on the surface, ...
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Knowledge Check

  • Calculate the energy required to excited one litre of hydrogen gas at 1 atm and 298 K to the excited state of atomic hydrogen. The energy for the disociation of H-H bond is 436 kJ mol^(-1) . Also calculate the minimum frequency of photon to break this bond.

    A
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    B
    `10.93xx10^(14) Hz`
    C
    `10^(15) Hz`
    D
    `6.22xx10^(14) Hz`

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