janjor
janjor asks:
Q:

what is the rate of evaporation of a 8 in loaf pan with 2.2 cups of water and a mug with 2.2 cups of water on a 90 degree day outside?

In Topics: Helping my child with science
> 60 days ago

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Expert

greenprof2
Jun 10, 2011
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What the Expert Says:

You'd have to try this yourself to find out. Problem is, you don't state the humidity in the ambient air. If the humidity is low, the rate of evaporation will be higher. If the air is already saturated, or close to 100% relative humidity, you'd get almost no evaporation, regardless of the day's outside temperature. You could measure the evaporation rate by massing the water before you start and then after a time "t" to see how much mass has been lost to evaporation per unit time.

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