When 1.0 g of gasoline burns, it releases 11kcal of heat. The density of gasolin

Question

When 1.0 g of gasoline burns, it releases 11kcal of heat. The density of gasoline is 0.74 g/mL A. How many megajoules are released when 1.0 gal of gasoline burns? b. If a television requires 150 kJ/h to run, how many hours can the television run in the energy provided by 1.0 gal of gasoline? When 1.0 g of gasoline burns, it releases 11kcal of heat. The density of gasoline is 0.74 g/mL A. How many megajoules are released when 1.0 gal of gasoline burns? b. If a television requires 150 kJ/h to run, how many hours can the television run in the energy provided by 1.0 gal of gasoline? A. How many megajoules are released when 1.0 gal of gasoline burns? b. If a television requires 150 kJ/h to run, how many hours can the television run in the energy provided by 1.0 gal of gasoline?

Explanation / Answer

a) volume in 1 gal = 3.78 L

mass of gasoline = 3.78*0.74

so, amount of energy released = 3.78*0.74*11*4.18

=128.615 kJ

=0.128 MJ

b)time = 128.615/150

=0.857 hours

=51.446 minutes

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