Two spherical soap bubbles of radii and in vacuum coalesce under isothermal conditions. The resulting bubble has a radius given by |
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a) |
b) |
c) |
d) |

Two spherical soap bubbles of radii and in vacuum coalesce under isothermal conditions. The resulting bubble has a radius given by |
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a) |
b) |
c) |
d) |

1 Answer

127 votes

Since, the bubbles coalesce in vacuum and there is no change in temperature, hence its surface energy does not change. This means that the surface area remains unchanged. Hence, or |

127 votes

127