Which of the following statements are true?
A) Buildings in hot, arid climates such as Arizona should be lightweight.
B) Roof overhangs are the best choice for controlling he sun on western facades.
C) Evaporative coolers require a refrigerant.
D) Cooler air is more likely to lose water vapor to condensation.
I know that D is correct, basically because I know that A-C are NOT correct, but D is confusing a bit. I think I'm good on the whole dry air and moist air percent of water vapor and the concept of condensation, but this is a little confusing. Why would cooler air instead of warmer air be more likey to lose water vapor to condensation? I mean if two portions of air have a similar percent of water vapor (RH) then why would the cooler portion of air be more likely to lose water vapor to condensation? The only thing I can rationalize is that the cooler air's water vapor will instantly condense as it's closer the temperature of condensation/ dew point?
If anyone has a good simple explanation I would really appreciate it.
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