Recall that the energy produced per liter of ethanol is 5.04 × 103 kcal/L and th
ID: 928784 • Letter: R
Question
Recall that the energy produced per liter of ethanol is 5.04 × 103 kcal/L and the energy produced per liter of octane is 7.41 × 103 kcal/L.
To travel the same distance (i.e., to produce the same amount of energy), which fuel will produce less greenhouse gas?
What volume in liter of ethanol would have to be burned to get the same energy as 1.00 L of octane?
To get the same energy as 1.00 L of octane, how many grams of CO2 would have been produced by burning ethanol?
0.680
1.47
4.00
46.0
114
1.02×103
2.15×103
2.21×103
ethanol
octane
It is the same for the two fuels.
Answer cannot be determined based on the information given.
Answer is not given.
1.0.680
2.1.47
3.4.00
4.46.0
5.114
6.1.02×103
7.2.15×103
8.2.21×103
9.ethanol
10.octane
11.It is the same for the two fuels.
12.Answer cannot be determined based on the information given.
13.Answer is not given.
Explanation / Answer
To travel the same distance (i.e., to produce the same amount of energy), which fuel will produce less greenhouse gas?
less greenhouse effect, is that which contains more energy per unit mass
that is octane
What volume in liter of ethanol would have to be burned to get the same energy as 1.00 L of octane?
1*(7.41*10^3)/(5.04*10^3) = 1.47 liter are needed
To get the same energy as 1.00 L of octane, how many grams of CO2 would have been produced by burning ethanol?
1.47 liter of ethanol were needed so
D = .890
mass = 1.47*0.890 = 1.31 g of CO2
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