Chemistry-
General
Easy

Question

Select the rate law that correspond to the data shown for the following reaction.

  1. text rate  end text equals K left square bracket B right square bracket to the power of 3 end exponent    
  2. text rate  end text equals K left square bracket B right square bracket to the power of 4 end exponent    
  3. text rate  end text equals K left square bracket A right square bracket left square bracket B right square bracket to the power of 3 end exponent    
  4. text rate  end text equals K left square bracket A right square bracket to the power of 2 end exponent left square bracket B right square bracket to the power of 2 end exponent    

The correct answer is: text rate  end text equals K left square bracket B right square bracket to the power of 3 end exponent


    From Exp., a & c if [A0] increased 2 times rate does not changed. If means rate does not depends on [A] From exp., a & d if [B0] increases 2 times rate increases 8 times.
    8 equals 2 to the power of m end exponent rightwards double arrow m equals 3
    therefore r equals K left square bracket A right square bracket to the power of 0 end exponent left square bracket B right square bracket to the power of 3 end exponent equals K left square bracket B right square bracket to the power of 3 end exponent

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