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When evaporation of water occurs, the faster- moving (more energetic) water molecules escape the liquid and become molecules in the air. The average kinetic.

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Presentation on theme: "When evaporation of water occurs, the faster- moving (more energetic) water molecules escape the liquid and become molecules in the air. The average kinetic."— Presentation transcript:

1 When evaporation of water occurs, the faster- moving (more energetic) water molecules escape the liquid and become molecules in the air. The average kinetic energy of molecules remaining in the liquid is lowered. The water is cooled. Normally, the air that receives the escaping molecules is 1. warmed. 2. cooled. 3. neither warmed nor cooled.

2 When evaporation of water occurs, the faster- moving (more energetic) water molecules escape the liquid and become molecules in the air. The average kinetic energy of molecules remaining in the liquid is lowered. The water is cooled. Normally, the air that receives the escaping molecules is

3 A piece of metal and a piece of wood of equal mass and equal temperature are removed from a hot oven and dropped onto blocks of ice. Which will melt more ice before cooling to the ice temperature? 1. The metal. 2. The wood. 3. Both will melt equal amounts of ice.

4 A piece of metal and a piece of wood of equal mass and equal temperature are removed from a hot oven and dropped onto blocks of ice. Which will melt more ice before cooling to the ice temperature?


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