Class Problem 6 1) Use the Lewis & Randall rule, to estimate the fugacity of CO in an equimolar mixture of CO and H, at -50C and 200 atm. Data for CO: T. = -139C, P. = 73.0 atm. 2) By comparing equations (22) and (25) and using the Lewis & Randall Rule, show that, in an ideal gaseous solution: = 4 +RT In y M where is the chemical potential of component i in the mixture, and W; the chemical potential of pure component i at the mixture T & P. Hence show that there is no volume change of mixing in an ideal gaseous solution