d$)$ Calculate the initial rate of evaporation of $H_{2}O$ as $\frac{g}{h}.$

e$)$ Plot the initial mole$-$fraction profile of $H_{2}O$ in the stagnant air layer in

the tube. $($Use Figure $1$ to plot your results.

f$)$ How long will it take for the liquid level in the tube to drop $3$ inches.

Solve using $N_A=\frac{{}_W}{M_W}\frac{dz}{dt}$

g$)$ Plot the tube liquid level as a function of time for this period. Use

Figure $2$ to plot your results.