A soap bubble of radius R has been formed at normal temperature and pressure under isothermal conditions. Compute the work done. The surface tension of soap solution is T.

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Solution

$W = T (Δ A)$
$= T [2 (4 π R^{2})]$
$= 8 π R^{2} T$

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A soap bubble of radius R has been formed at normal temperature and pressure under isothermal conditions. Compute the work done. The surface tension of soap solution is T.

W=T(ΔA) =T[2(4πR2)] =8πR2T

$W = T (Δ A)$
$= T [2 (4 π R^{2})]$
$= 8 π R^{2} T$