Answer the questions using the diagram provided $($a$)$ Slope $($of the p$-$T envelope$)$

$($b$)$ Width $($of the p$-$T envelope$)$

$($c$)$ How it lies between the vapor pressure lines of the lightest and heaviest components

$($d$)$ Shift of the critical point toward the dominant component

$($e$)$ How the Critical Pressure of the mix is much higher than the Critical Pressures of the individual components.

$($f$)$ How the Critical Temperature of the system falls between the Critical Temperatures of the individual components