Which of the following is an independent variable for a batch tank reactor with uniform concentration and temperature ?
Correct answer: D. Time
- A. None of these
- B. Useful volume of the tank
- C. Diameter of the reactor
- D. Time
Explanation
In a batch reactor, material is charged and then allowed to react without continuous feed or withdrawal, so time is the independent operating variable. Tank volume and diameter are design parameters, not the variable describing reaction progress.
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