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Emulsification of 10 ml of oil in water ...

Emulsification of 10 ml of oil in water produces `2.4xx10^(18)` droplets. If the surface tension at the oil-water interface is `0.03 Jm^(-2)` and the area of each droplet is `12.5 xx 10^(-16) m^(2)`, the energy spent in the formation of oil droplets is -

A

90 J

B

30 J

C

900 J

D

10 J

Text Solution

Verified by Experts

The correct Answer is:
A
`{:("Total droplets",,=2.4 xx 10^(18)),("total area",,="total droplets"xx"area of one drop"),(,,=2.4xx10^(18)xx12.5xx10^(-16)),(,,=12.5xx2.4xx10^(2) m^(2)),("Energy consumption",,),(,,=0.03xx12.5xx2.4xx10^(2)),(,,=90" Joule"):}`
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