Gasoline has a heating value of 20.0 × 103 Btu/lbm.
How many 10.0 oz colas must Ted drink to produce enough power by turning a crank to light a 100. W lightbulb for the same number of hours that an internal combustion engine running on 1.00 lbm of gasoline with an overall efficiency of 25.0% could light the same bulb?