please solve two questions in paper

Q$1)$ Data for the filtration of CaCO$3$ slurry in water at $298\mathrm{.}2K(25C)$ are reported as follows at a constant pressure $(-P)$ of $46\mathrm{.}2k\frac{N}{m^2}(6\mathrm{.}70a).$ The area of the plate$-$and frame press was $0\mathrm{.}0439m^2(0\mathrm{.}473f{t}^2)$ and the slurry concentration was $23\mathrm{.}47kg$ solid $\frac{?}{m^3}$ filtrate. Calculate the constants $$ and $R_m.$ Data are given as $t=$ time in $s$ and $V=$ volume of filtrate collected in $m^3$

$\backslash$table$[[V{10}^3,t,v{10}^3,t,V{10}^3,t$