Answer:

Step-by-step explanation:
Chemical Reaction:

From the reaction, we can say that,
- 1 mole of propane and 5 moles of oxygen produce 4 moles of water and 3 moles of carbon dioxide.
So, to generate 3 mole of carbon dioxide, 5 moles of oxygen are required. (as shown in the chemical reaction!)
![\rule[225]{225}{2}](https://img.qammunity.org/2023/formulas/english/college/eq413d752mwtrwwenrzwldxt4w1olmf1b3.png)