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The diameter of a gas bubble formed at t...

The diameter of a gas bubble formed at the bottom of a pond is `d = 4 cm`. When the bubble rises to the surface, its diameter tension of water `= T = 0.07 Nm^(-1)`

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The correct Answer is:
5
We have `pV=mRT`
`(p_(0)+rho_(w)gh=(4T)/d)pi/6d^(3)=(p_(0)+(4T)/d d)pi/6n^(3)d^(3)`
the bubble has only one surface)
`:. H=(d(n^(3)-1)p_(0)+4T(n^(2)-1))/(rho_(w)gd)`
or `h=(4xx10^(6)(1xx1^(3)-1)xx10^(5)+4xx0.07(1xx1^(2)-1))/(1000x9.8xx4xx10^(-6))=5m`
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