'Internal energy decreases' diaporamas de présentation

Evaporation and condensation

Evaporation and condensation. Individual molecules can change phase any time Evaporation: Energy required to overcome phase cohesion Higher energy molecules near the surface can then escape Condensation: Gas molecules near the surface lose KE to liquid molecules and merge.

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1 st Law of Thermodynamics

1 st Law of Thermodynamics. More Problems. In the equation Q= ?U+W , the quantities Q and W represent The heat released by the system and the work done by the system. The heat released by the system and the work done on the system.

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8 x 10 9 2 x 10 9 8 x 10 6 32 x 10 2 8 x 10 3

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