Question

When the size of a soap bubble is increased by pushing more air in it, the surface area increases. Does it mean that the average separation between the surface molecules is increased?

Answer 1

No, the average intermolecular distances do not increase with an increase in the surface area. A soap's bubble layers consists of several thousands layers of molecules. An increase in the surface area causes the surface energy to also increase. This in turn allows more and more molecules from the inner liquid layers of the bubble attains potential energy, enabling them to enter the outer surface of the bubble. Hence, the surface area increases.

Hope you understand

Please make me as brainliest ✌️✌️✌️

Answer 2

Explanation:

• No, when the size of a soap bubble is increased by pushing more air in it, the surface area of the bubble increases but the average separation between the surface molecules is not increased.
• Instead, the surface energy increases and as a result, the molecules of the bubble gains energy to reach the outer surface of the bubble.
• So, the increase in surface area is due to increase in number of molecules in the upper surface and when the size of the bubble is increased, it may not retain the spherical shape.