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1. Air conditioners not only cool air, but dry it as well. Suppose that a room...

1. Air conditioners not only cool air, but dry it as well. Suppose that a room in a home measures 6.0m×8.0m×2.5m. If the outdoor temperature is 30 ∘C and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? The vapor pressure for water at 30 ∘C∘C is 31.8 torr. Express answer in two significant figures.

2. Four ice cubes at exactly 0 ∘C with a total mass of 52.0 g are combined with 135 g of water at 90 ∘C in an insulated container. If no heat is lost to the surroundings, what is the final temperature of the mixture?

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