The enthalpy of combustion of gasoline is about 45 kJ/g. The amount of energy needed to heat 1 g of water from 20 °C to 100 °C is 80 °C x 4.18/g•°C. The enthalpy of vaporization of water is 2540 J/g. What mass of water at 20 °C can 1 g of gasoline heat and boil?
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