In describing what's going on in Figure 5.10, I ignored the change in temperature of the engine that accompanies the combustion of the fuel. Make a bar diagram that includes this change in temperature.

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Figure 5.10 (a) An accelerating car constitutes a closed system because no changes occur in its environment. (b) The increase in the car's kinetic energy can be attributed to a decrease in chemical energy (due to the combustion of fuel). (a) Initial and final conditions, changes in state and motion, system E change in motion: car accelerates change in state: chemical state of fuel changes (b) Energy bar diagrams for initial and final conditions Ech Echem K E Car Car burns fuel. speeds up. chem AK Echem K