b$.$ Aqueous $A$ at a concentration $C{A}_A=1mo\frac{l}{L}$ is introduced into a batch reactor

where it reacts away to form product $R$ according to stoichiometry $AR.$ The

concentration of $A$ in the reactor is monitored at various times, as shown

below:

For $C_{hc}=500mo\frac{l}{m^2}$ find the conversion of reactant after $5$ hours in the batch

reactor.

What is the order of the reaction? What is the rate constant?