How many litres of air is required?

Question

How many litre of air is required to produce 2kg co2 gas ?

Answer 1

2 kg CO₂ x 1000 g/kg x 1 mol/44g = 45.5 moles of CO₂

If you assume that air is 0.04% CO₂, then ...

x moles of air x 0.0004 = 45.5 moles CO₂

x = 113,750 moles of air

Assuming you are operating under conditions of STP, and assuming air acts as an ideal gas, then...

113,750 moles air x 22.4 liters/1 mole = 2,548,000 liters of air would be required.

 

This is a bizarre question, and makes several assumptions.