Chemistry-
General
Easy

Question

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

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


    From the experiments 1 and 3 the rate does not depend one [A], but from experiment, 1 and 4. When the [B] is doubled the rate increased by 8 times. This indicates.
    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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