Question

derivation for ...Excess pressure inside the bubble..​

Answer 1

Answer:

$\blue{Derive an expression for excess of pressure inside a soap bubble. ... Due to excess pressure inside the liquid drop, the free surface of the drop will experience the net force in the outward direction due to which the drop will expand. Let the free surfaces be displaced by dR under isothermal conditions.}$

Answer 2

Answer:

Use the above derived formula over any surface film.

For excess pressure in the bubble use the derivation in next pic.

Po means atmospheric pressure.

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