Question $1$For each of the following equilibrium systems, find the number of degrees of freedom fand give a reasonable choice of the independent intensive variables. $($Omit consideration of water ionization.$)($a$)$ An aqueous solution of sucrose. $($b$)$ An aqueous solution of sucrose and ribose. $($c$)$ Solid sucrose and an aqueous solution of sucrose and ribose. $($d$)$ Solid sucrose, solid ribose, and an aqueous solution of sucrose and ribose. $($e$)$ Liquid water and water vapor. $($f$)$ An aqueous sucrose solution and water vapor. $($g$)$ Solid sucrose, an aqueous sucrose solution, and water vapor. $($h$)$ Liquid water, liquid benzene $($these two liquids are essentially immiscible$),$ and a mixture of the vapors of these two liquids.