Yes, you haven't used the final ratio: 70g CO2 corresponds to 1MJ energy.When I did this as a ratio I got 133,155 g of CO2 but thats still not the answer in the back of the book is there another step?
Yes, you haven't used the final ratio: 70g CO2 corresponds to 1MJ energy.
If 1 gal gasoline releases 133,155 g of CO2, and each 70g CO2 indicates 1MJ of energy, how many MJ for the whole gallon?
Right!When I did this I got 1902.214 MJ. Is this right?
that is only for 1 gallon so I got 28530 MJ
This is much easier. you have 15 gals at 12.8 MJ/m^3.If so how would I go about doing part B?
Yes. So you have, for burning gasoline:
So how many J energy correspond to 1 gallon gasoline?
- 12 atomic masses C corresponds to 44 atomic masses CO2
- 70g CO2 corresponds to 1MJ energy
- 1 gallon gasoline corresponds to 36,315 g C
Well spotted - thanks. But fortunately courtneywetts used the right ratio later.This is incorrect. According to the attachment in Post #4, 1 gallon of gasoline has a carbon content of 2421 g, not 36,315 g. The latter figure is for 15 gallons of gasoline.