For the oxidation of ethylene to Ethyleneoxide, the feed stream contains ethylene: oxygen in a stoichiometric molar ratio of 2:1. The properties of the mixture and pure components are given below depending on the Head at a constant temperature of 0 ^oC.

a) Calculate the fugacity of oxygen and ethylene in the mixture at T= 0⁰C and P= 25 atm, based on the Lewis-Randall rule.

b) Calculate the fugacity of oxygen and ethylene in the mixture at T= 0⁰C and P= 25 atm using the data given below.

P (atm)	M3/kmol	M3/kmol	M3/kmol	M3/kmol
1	22,256	22,211	22,189	22,350
5	4,366	4,323	4,294	4,456
10	2,129	2,087	2,053	2,219
15	1,384	1,342	1,305	1,473
20	1,011	0,970	0,928	1,100
25	0,787	0,747	0,700	0,877

Vmixture VC2H4 VC2H4 VO2