ChemistryAbout dissociation of H 2 g molecule, which of the following is incorrect?

About dissociation of H2g molecule, which of the following is incorrect? 

  1. A
    The H – H bond dissociation enthalpy is greater than D – D bond dissociation enthalpy
  2. B
    The Dissociation of  Di hydrogen into it’s atoms is only 81 × 10-3 % around 2000 K.
  3. C
    The dissociation of di hydrogen into it’s atoms is 95.5% at 5000K
  4. D
    Di-hydrogen is relatively inert at room temperature.

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    Solution:

    H-H dissociation. enthalpy = 436 KJ/mole D2 = 443.3 KJ/mole at 298 K.

                                 

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