A soap bubble in air has a radius of 3.20 cm. It is then blown up to a radius of 5.80 cm. Use 26.0 mN/m for the (constant) surface tension of the bubble. (a) What is the initial pressure difference across the bubble film? (b) Find the pressure difference across the film at the larger size. (c) How much work was done on the atmosphere in blowing up the bubble? (d) How much work was done in stretching the bubble surface?

Shane Macguire , 9 Years ago

Grade upto college level