Question

Почему мыльный пузырь, наполнен воздухом и опущенный в открытый сосуд с углекислым газом, не опускается на дно сосуда???

Answer 1

Потому что воздух N2 в основном легче углекислого газа CO2.

Answer 2

Explanation of the Phenomenon

When a soap bubble filled with air is placed in an open container with carbon dioxide gas, it does not sink to the bottom of the container. This phenomenon can be explained by the difference in density between air and carbon dioxide, as well as the properties of the soap bubble.

The density of carbon dioxide is higher than that of air. This means that carbon dioxide will tend to settle at the bottom of a container, displacing lighter gases such as air upward.

The soap bubble is lighter than the surrounding carbon dioxide gas. The soap bubble is composed of a thin film of soap and water that traps air inside. This air makes the bubble less dense than the surrounding carbon dioxide gas, causing it to float on the surface rather than sink to the bottom.

Additional Factors

In addition to the density difference between air, carbon dioxide, and the soap bubble, other factors also contribute to this phenomenon.

Surface Tension: The surface tension of the soap bubble's film also plays a role in its ability to float. The surface tension of the soap film allows it to maintain its shape and resist deformation, contributing to its buoyancy in the carbon dioxide gas.

Pressure Imbalance: The differences in pressure between the inside and outside of the soap bubble can also affect its behavior. The pressure inside the soap bubble may be slightly higher than the surrounding carbon dioxide gas, further contributing to its ability to float on the surface.

Conclusion

In summary, the soap bubble filled with air does not sink to the bottom of the container when placed in an open vessel with carbon dioxide gas due to the density difference between air and carbon dioxide, as well as the buoyant properties of the soap bubble's film. These factors collectively contribute to the bubble's ability to float on the surface of the carbon dioxide gas.