A cylinder containing CH4,C2H6, and N2 has to be prepared containing a CH4 to C2H6 ratio of 1.5:1. available to prepare the mixture are (1) a cylinder containing a mixture of 80% N2 and 20% CH4 (2) a cylinder containing pure N2.(3) a cylinder containing pure N2.
a) draw a flow diagram for the problem and define a CV
b) what is the number of degree s of freedom of the system to determine the number of contributions from each cylinder to get the desired composition?