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Assertion (A): Kinetic rate constants are most often measured in a batch reactor.
Reason (R): With no flow terms the balance reduces to the rate expression alone.

  • A.A is false but R is true
  • B.Both A and R are true, and R is the correct explanation of A
  • C.Both A and R are true, but R is not the correct explanation of A
  • D.A is true but R is false

Answer: B

Both are true and the reason gives the advantage: concentration against time in a well mixed batch vessel is exactly what an integrated rate law predicts. No flow terms complicate the analysis. Concentration against time is what is measured.

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