Question

The probe signal of O2 is determined by the equation ____________

(a) P(O2) = C(O2) * TP

(b) P(O2) = C(O2) * PT

(c) P(O2) = C(O2) / PT

(d) P(O2) = C(O2) + PT

This question was posed to me in exam.

This question is from Instrumentation and Control in division Instrumentation and Control of Fermentation Technology

Answer 1

Right choice is (b) P(O2) = C(O2) * PT

The explanation is: The probe signal of O2 is determined by the equation: P(O2) = C(O2) * PT where P(O2) is the partial pressure of dissolved oxygen sensed by the probe, C(O2) is the volume or mole fraction of oxygen in the gas phase, and PT is the total pressure.