Explain processes occur in an internal combustion engine

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Reference no: EM13241768

The following processes occur in an internal combustion engine. For which one is the entropy change negative?

Compression of the gasoline/air mixture in a piston

Ignition: 2 C8H18 (octane) (g) + 25 O2 (g) --> 16 CO2 (g) + 18 H2O (g)

Expansion of hot CO2 (g) and H2O (g) in a piston

Release of CO2 (g) and H2O (g) into the air

All of these have a positive entropy change.

Reference no: EM13241768

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