Which of the following statements regarding the variation of log⁡Kpσ of an equilibrium reactions is correct?

Which of the following statements regarding the variation of logKpσ of an equilibrium reactions is correct?

  1. A

    It increases linearly with increasing T.

  2. B

    It decreases linearly with increasing T.

  3. C

    It increases linearly for an exothermic reaction with increasing 1/T.

  4. D

    It decreases linearly for an exothermic reaction with increasing 1/T.

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    Solution:

    For exothermic reaction, ΔrHp is negative. Thus lnKeq = positive T+ constant Hence 

    lnKeq  will increase linearly with increase in 1/T.

     

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