Answer:
B. 20 lbs of CO2
Explanation:
From correct sources, One gallon weighs about 6.3 pounds,
The options for complete correct question should be
[a ] 6.3
[ b] 20
[ c] 200
SOLUTION
When gasoline burns, water (H2O) is formed by the combination of hydrogen combines with oxygen, so also carbon dioxide (CO2) is formed as carbon combines with oxygen.
Atomic weight of C is 12, oxygen is 16
The molecular weight of CO2 is therefore 12 + (16 × 2) =44
weight of the carbon in the gasoline = molecular weight of CO2/Atomic weight is Carbon
=44/12 = 3.7
gasoline contains about 87% carbon with 13% hydrogen by weight
Weight of the carbon in a gallon of gasoline 6.3 lbs. x 87% = 5.48 lbs
In order to get the amount of CO2 generated in pounds
multiply the weight of the carbon (5.5 pounds) by 3.7
= 20 pounds of CO2!
