Question 402686
the heat energy in the gasoline is ___ (1.4 kg) * (43 MJ/kg) = 60.2 MJ


one Watt is one Joule per second
3600 sec in an hr


power generated is ___ (3.5 kW) * (3600 sec) = 12.6 MJ


efficiency is ___ (12.6 MJ) / (60.2 MJ) ___ expressed as a percent