In the B.E.T. equation, what does p^0 denotes?
(a) Pressure of the gas molecules
(b) Unsaturated vapor pressure of the gas molecules
(c) Saturated vapor pressure of the gas molecules
(d) All of the mentioned
This question was addressed to me at a job interview.
My question comes from B. E. T. Adsorption Isotherm in portion Criteria of Purity and Characterisation of Materials of Engineering Chemistry I