A gas stream that conatins 1.0 mole% CO2 flows through a pipeline. 50 kg of CO2 per minute is injected into the line. A sample of the gas is drawn from a point in the line 150 meters downstream of the...

A gas stream that conatins 1.0 mole% CO2 flows through a pipeline. 50 kg of CO2 per minute is injected into the line. A sample of the gas is drawn from a point in the line 150 meters downstream of the injection point and found to contain 2 mole% CO2. Determine the flow rate of a gas stream upstream of the injection point.