Answer
Exergy is basically the availability of work. Exergy reduces as irreversibility increases. When aircraft lands, brakes are applied where energy is lost in friction. There is also friction between aircraft's tyres and runways during landing. Irreversiblity is associated with friction. Fuel is also burned as engine is running which also a source of irreversibility. In conclusion, Exergy reduces when plan's lands and parks.
Work Step by Step
Exergy is basically the availability of work. Exergy reduces as irreversibility increases. When aircraft lands, brakes are applied where energy is lost in friction. There is also friction between aircraft's tyres and runways during landing. Irreversiblity is associated with friction. Fuel is also burned as engine is running which also a source of irreversibility. In conclusion, Exergy reduces when plan's lands and parks.
