Two identical soap bubbles, each of radius .x., coalesce to form a bubble of radius .y., If P be the atmospheric pressure, and assuming that the process is isothermal, what is the surface tension of soap solution ?

Two identical soap bubbles, each of radius .x., coalesce to form a bub

1.	Two identical soap bubbles, each of radius .x., coalesce to form a bubble of radius .y., If P be the atmospheric pressure, and assuming that the process is isothermal, what is the surface tension of soap solution ?
Answer» Answer :`T=(P[2X^(3)-y^(3)])/(4(y^(2)-2x^(2)))`