Solve it clearly.... Otherwise i will downvote........

To develop a seemingly more realistic model of accumulation of a contaminant in a shower, assume that the shower stall is separated from the rest of the bathroom by a partition that ends a little below the ceiling of the room. While the net rate of exhaust of air from the bathroom remains at Qom/s, an exchange of air between the two compartments occurrs at a rate of Qge m/s. The arrangement is schematically shown in Figure 6.20. Q...in OG lorca CG OD OaC * Og Casa V Cas Partition wall Figure 6.20 Schematic of the two-compartment model. Develop an expression for the transient VOC concentration in the shower based on the above model. Following data are given: V, = 2.8 m"; V. = 8.1 m'; Q2 = 0.0137 m/min; Que = 0.11 m/min; Og = 0.0378 m/min; Kid' = 0.029 m/min; CL.in = 3.4 ug/litre; Co.in = 0.0014 mg/litre; equilibrium relation, Co E ACE; = 0.57