Determine the concentration of carbon monoxide in the room as a function of time?

A room contains 40m^3 of air, initially free of carbon monoxide.
A smoker comes in and lights a cigarette tha produces carbon monoxide at a rate of 3 x 10^-6 m^3/sec.
A window is open so that fresh air enters the room at a rate of 3 x 10^-3 m^3/sec.
In the room the air and pollutants are mixed by a fan and mixed air then exits through another window the same rate it entered.

Im not sure what to do here as there is no like, concentration of CO3 entering the room. Advice would be appreciated

Reply 1

ImperceptibleNinja

What you've typed doesn't actually ask a question. What is it you're meant to be finding out? An equation for the concentration of CO or total amount of CO in the room? The concentration or amount at a certain time?

To tackle that kind of question, I suggest you draw a diagram showing what's entering the system and what's leaving the system, and use that to construct a differential equation, then solve that and use the initial conditions to get an expression that will tell you the amount or concentration of CO in the room at any time.