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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Critical Thinking

  • question_answer
    Kp for the following reaction at 700 K is \[1.3\times {{10}^{-3}}\] atm-1. The Kc at same temperature for the reaction \[2S{{O}_{2}}+{{O}_{2}}\] \[2S{{O}_{3}}\] will be           [AIIMS 2001]

    A)                 \[1.1\ \times \ {{10}^{-2}}\]        

    B)                 \[3.1\ \times \ {{10}^{-2}}\]

    C)                 \[5.2\ \times \ {{10}^{-2}}\]        

    D)                 \[7.4\ \times \ {{10}^{-2}}\]

    Correct Answer: D

    Solution :

               \[{{K}_{p}}={{K}_{c}}{{(RT)}^{\Delta n}}\]          R = Gas constant                                 \[{{K}_{c}}=\frac{{{K}_{p}}}{{{(RT)}^{\Delta n}}}=\frac{1.3\times {{10}^{-3}}}{{{(0.0821\times 700)}^{-1}}}=7.4\times {{10}^{-2}}\]


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