The gas inside a spherical bubble expand...

The gas inside a spherical bubble expands uniformly and slowly so that its radius increases from `R` to `2R`. Let the atmospheric pressure be `p_(0)` and surface tension be `S`. The work done by the gas in the process is

`(28piR^3P_0)/3+24pisR^2`

`(25piR^3P_0)/3+24pisR^2`

`(25piR^3P_0)/3+(23pisR^2)/2`

`23piR^2`

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