The biochemical oxygen demand can be given by ___________
(a) (Dob – Dos)+dilution factor
(b) (Dob – Dos)-dilution factor
(c) (Dob – Dos)/dilution factor
(d) (Dob – Dos)*dilution factor
This question was addressed to me in unit test.
This interesting question is from Problems, Units and Formulae topic in portion Water of Applied Chemistry