Question

the combustionof 1.0g of gasoline realises 11kcal of heat (Density of gasoline=0.74g/ml)

a)how many megajoules are realised when 1.0 gallon of gasoline burns?

b)when a color TV is on for 2 hours 300KJ are used. How long can a color TV runon the energy from 1.0 gallon of gasoline?
Convert 1.0 gallon gasoline to grams, then to kcal heat on combustion, then to joules and megajoules.
b)2hours x (kJ from part a/300) = ??
Not a clue

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