Use van der Waals eq$.$ for activities of argon$-$ethylene mixture. Observe the picture of argon$(1)-$ethylene$(2)$ mixture. Observe the picture of argon$(1)-$ethylene$(2)$ mixture,

find the activity of a$1($argon$)$ by van der Waals equation and enter the value of a$1$ below. Observe the picture of argon$(1)-$ethylene$(2)$ mixture,

find the activity of a$2($ethylene$)$ by van der Waals equation and enter the value of a$2$ below. Use the definition of activity coefficient, calculate the value of gamma$1$ for argon. Use the definition of activity coefficient, calculate the value of gamma$2$ for ethylene