What is the excess pressure inside a bubble of soap solution of radius

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propertiesoffluids

#1

What is the excess pressure inside a bubble of soap solution of radius 5.00 mm, given that the surface tension of soap solution at the temp. (20°C) is 2.50 X 10~2 Nm"1 ? If an air bubble of the same dimension were formed at a depth of 40.0 cm inside a container containing the soap solution (of relative density 1.20), what would be the pressure inside the bubble ?


#2