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Question

For the reaction, P C l subscript 3 end subscript open parentheses g close parentheses plus C l subscript 2 end subscript left parenthesis g right parenthesis rightwards harpoon over leftwards harpoon P C l subscript 5 end subscript left parenthesis g right parenthesis, the value of K subscript c end subscript at 250 ℃ is 26. The value of K subscript p end subscript at this temperature will be

  1. 0.41  
  2. 0.51  
  3. 0.61  
  4. 0.71  

The correct answer is: 0.61


    K subscript p end subscript equals K subscript c end subscript open parentheses R T close parentheses to the power of increment n g end exponent
    Here, increment n subscript g end subscript equals negative 1 and K subscript c end subscript equals 26
    R equals 0.0812 comma blank T equals 250 plus 273 equals 523 K
    K subscript p end subscript equals 26 cross times open parentheses 0.0812 cross times 523 close parentheses to the power of negative 1 end exponent equals 0.605 equals 0.61

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