1thanx
and plz give me explanation 4 the surface energy.
Plz make me understand the meaning of surface energy.
And another thing why spraying results in coldness???
Plz give me explanation.
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3 Answers
1While spraying, the surface area of liquid suddenly increases.NOw
the work done is against the cohesive forces .....leading to decrease in internal energy of molecules of water..hence resulting in coldness
1For surface energy:
when the surface area of a liquid is increased ,the molecules frm bottom rise to surface.and the work donre against cohesive forces is stored in form potential energy on surface...this energy is probably called surface energy...
PLz refer some authentic book for its theory....i just gave rough explanation