Assignment:
An unglazed porcelain plate 5 mm thick has an average pore diameter of 0.2 pm. Pure oxygen gas at an absolute pressure of 20 mmHg, 400 K, on one side of the plate passed through at a rate of 0.10 cm3 (at 20 mmHg, 400 K)/cm2-s when the pressure on the downstream side was so low as to be considered negligible
(a) Calculate the Knudsen number for flow inside the pores.
(b) Estimate the rate of passage of hydrogen gas through the plate at 300 K and an absolute pressure of 10 mmHg, with negligible downstream pressure.
Provide complete and step by step solution for the question and show calculations and use formulas.