Answer to Question #26757 in Molecular Physics | Thermodynamics for Lindsey

Question

The fuel and air mixture in the cylinder of a gasoline engine heats to 1500K when it burns at the top of the piston stroke. The engine takes 1000J of heat from this mixture as it pushes the piston down. It exhausts the "spent" gases at 1100K. How much work did the engine take from the burning gases? ___J The efficiency of an engine can be defined as the ratio of the work produced to the energy consumed. In these terms, what is the percent efficiency of this motor? ___%