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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2003

  • question_answer
    For a reaction if \[{{K}_{p}}>{{K}_{c}}\], the forward reaction is favoured by:

    A)  low pressure

    B)  high pressure

    C)  high temperature

    D)  low temperature

    Correct Answer: A

    Solution :

    For a reaction, we know that \[{{K}_{p}}={{K}_{c}}{{(RT)}^{\Delta {{n}_{g}}}}\] where \[\Delta {{n}_{g}}\]= Number of gaseous moles of product - Number of gaseous moles of reactant Hence, if  \[{{K}_{p}}>{{K}_{c}}\], then An must be positive. It means that there is a decrease in volume of reaction, hence low pressure will favour the forward reaction.


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