The automobile fuel called e85 consists of 85 % ethanol and 15 % gasoline. e85 can be used in so-called "flex-fuel" vehicles (ffvs), which can use gasoline, ethanol, or a mix as fuels. assume that gasoline consists of a mixture of octanes (different isomers of c8h18), that the average heat of combustion of c8h18(l) is 5400 kj/mol, and that gasoline has an average density of 0.70 g/ml. the density of ethanol is 0.79 g/ml. by using the information given, calculate the energy produced by combustion of 1.5 l of gasoline.

of energy is produced by combustion of 1.5 L of gasoline.

Explanation:

The average heat of combustion of liquid octane =

Density of gasoline = 0.70 g/mL

Mass of gasoline with volume 1.5 L be m

V = Volume = 1.5 L = 1500 mL

Since gasoline consists of a mixture of octanes. We can treat gasoline as a compound as octane.

Moles of octane =

Energy produced by combustion of  9.2105 mol of gasoline:

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.

it is the most commonly accepted one