What occurs when the temperature of a saturated gas drops down to its dew point?
a. Excess water vapor will condense as visi-ble droplets.
b. The temperature of the surrounding air decreases.
c. Any liquid water present will quickly evaporate.
d. The relative humidity of the gas begins to decrease.
ANS: A
Cooling a saturated gas below its dew point causes increasingly more water vapor to condense into liquid water droplets.
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