Assume that water and N$,$N$-$dimethyl$-$formamide $($DMF$,$ C$3$H$7$NO$)$ form an ideal solution. Use NIST Chemistry WebBookLinks to an external site. and develop p$-$x phase diagrams for the water$-$DMF solutions at $30$ and $40$ oC$.$ The horizontal axis should be the mole fraction of DMF$.$ The vertical axis should be pressure in bars.

Plot both diagrams in the same graph. Label axes, mark which diagram represents what temperature. Label phases present at different conditions.

Continue considering an ideal solution of water and N$,$N$-$dimethyl$-$

formamide $($DMF$,C_3{H}_{7}NO).$ Using data from NIST Chemistry.

Webbook $G,$ develop a T$-$x phase diagram at $1$ bar. The horizontal

axis should be the mole fraction of DMF$.$ The vertical axis should

be temperature in $K.$

Continue considering an ideal solution of DMF in water. Assume

that $60g$ of water is mixed with $40g$ of DMF$.$ Assume that the

Antoine equation given for DMF in NIST Chemistry webbook

remains valid up to at least $110C,$ and assume that the prepared

water$/$DMF solution is in equilibrium with its saturated vapor at $1$

bar and at $106C.$ What will be the mole fraction of DMF in the

vapor above the solution?