Question 8 The octane rating of gasoline is a relationship of the burning effici

Question

Question 8 The octane rating of gasoline is a relationship of the burning efficiency of the given gasoline mixture to the burning efficiency of octane (C8H18). (Figure 1) Like most hydrocarbons, octane reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction is Part A Determine the balanced chemical equation for this reaction. Enter the coefficients for each compound in order, separated by commas. For example,1,2,3,4 would indicate one mole of C8H18, two moles of O2, three moles of CO2, and four moles of H2O.

Explanation / Answer

This is comubstion of octane in oxygen

The general formula of required oxygen for alkane is = 3n+1 / 2 where n = number of carbon atoms

So C8H18 will require = 3X8+1 /2 O2 = 25/2 O2

the balanced equation will be

C8H18 + 25/2 O2 --> 8CO2 + 9H2O

So coeffecients will be 1, 25/2, 8, 9

Or

2C8H18 + 25 O2 --> 16CO2 + 18H2O

2, 25, 16 , 18

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---