astronauttobe1 Posts: 2, Reputation: 1 New Member #1 Nov 13, 2013, 06:27 PM
How long will it take the sun to burn off the fog if it can supply Q =40 J s-1 to the
How long will it take the sun to burn off the fog if it can supply Q =40 J s-1 to the 1 m3 of air with fog?
 Celine91 Posts: 51, Reputation: 9 Junior Member #2 Nov 14, 2013, 04:38 AM
q = 113 joules (energy required to evaporate all liquid water in 1m3 of fog)

* refer to your other post on how we calculated this energy.

if it is given that sun can supply Q =40 J s-1, then it needs 113/40 = 2.825 sec to burn off 1m3 of air with fog.

==> Answer = 2.825 sec for the sun to burn off 1m3 of air with fog.

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