Engineering Board Exam Reviewer · Environmental Engineering · hard

A BOD rate constant is 0.23/day at 20 °C. What is its value at 25 ° C? ( = 1.047)

  1. 1.204 /day
  2. 0.183 /day
  3. 0.289 /day
  4. 0.725 /day

Answer

C. 0.289 /day

Solution

kT = k20 T-20 = 0.23(1.047)5 = 0.289 / day.

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