Key: 12. The reason water boils at a lower temperature in high altitudes is… a. Higher altitudes sustain lower temperatures which cause the water to boil at a lower temperature because the difference in temperatures creates a discrepancy in the air pressure and vapor pressure. b. There is less pressure in the air at high altitudes which weaken intermolecular forces in the water and allow molecules to break up more easily which means it takes less heat to break the molecules apart c. There is more pressure at high altitudes which cause the liquid water to boil at a lower temperature to decrease the vapor pressure of the liquid. d. Air pressure at high altitudes is lower; meaning that the water does not have to be heated to as high a temperature in order for the vapor pressure of water to equal atmospheric pressure e. There is less pressure at higher altitudes which causes the water to be boiled at a lower temperature because the air and water pressures move towards equilibrium which causes water to boil more easily to increase the partial pressure in the air and
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This document was uploaded on 11/04/2011 for the course CHEM 106 at BYU.