Luach $=12pm=3prs$

$r{a}_{e_r}$ Assume that, you had a grand lunch just by $12\mathrm{.}00$ P$.$M$.$ Let us consider our stomach a batch reactor, it took $3$ hours for partial digestion in the stomach, i$.$e is $40\%$ is unconverted, the undigested food enter through the small intestine, and cross the large intestine, around $98\%$ of the food is digested in the small intestine itself,

Calculate the rate constant for the stomach and time taken for the digestion of unconverted food in the small intestine.

Consider that the rate of conversion is depend on the initial concentration of the reactant.