Methylene chloride $($species $A)$ undergoes an interphase convective mass$-$transfer process between air and water at $20C$ and $1\mathrm{.}80$atm total pressure. Air is the inert carrier gas, and water is the inert solvent. In the present process, the mole fractions of methylene chloride are $0\mathrm{.}100$ and $0\mathrm{.}006$ in the gas and liquid phases, respectively. The mass$-$transfer coefficients for methylene chloride are $k_y=0\mathrm{.}008$gmo$\frac{l}{m^2}*s$ and $k_x=0\mathrm{.}150$gmo$\frac{l}{m^2}*s$ for the gas and liquid films, respectively. At $20C,$ the density of liquid water is $992\mathrm{.}3k\frac{g}{m^3}.$

$($a$)$ What is the process?

$(2\%)$

$($b$)$ Determine the Henry's law constant $(H)$ for methylene chloride dissolved in water, according to the definition $p_A=H{c}_A,$ where $p_A$ and $c_A$ are the partial pressure of methylene chloride in air and concentration of methylene chloride dissolved in water, respectively.

$($c$)$ Determine the overall coefficient $K_L.$

$(4\%)$

$(4\%)$

$($d$)$ What is the flux of methylene chloride across the gas and liquid phase?

$(4\%)$

$($e$)$ Determine the interface mole fraction, $y_{A,i}$ and $x_{A,i}.$

$(6\%)$

Equilibrium data for the methylene chloride$-$air$-$water system at $20C$ and $1\mathrm{.}80$atm are given in the table below.

$\backslash$table$[[y_A,0\mathrm{.}10,0\mathrm{.}15,0\mathrm{.}20,0\mathrm{.}25,0\mathrm{.}30],[x_A,0\mathrm{.}00250,0\mathrm{.}00375,0\mathrm{.}00500,0\mathrm{.}00625,0\mathrm{.}00750]]$

$y_A$ : mole fraction of methylene chloride in air

$x_A$ : mole fraction of methylene chloride dissolved in water