Larger (the air pressure is dropping as it rises).
I'm not sure I understand the question but here goes: Helium is lighter [less dense] than air, so a helium filled balloon rises because it floats up on the more dense air.
The heliom inside the ballon is why a ballon able to rise.
Helium is a gas that is less dense than air. This is why a balloon filled with helium rises when released.
Helium is lighter than air, therefore it rises upwards.
Hydrogen is lighter than air, so the force of gravity is overcome by the force of the heavier air pushing on the balloon. Same as why bubbles float to the top of water. When balloon is filled with air there is no competing force so gravity takes over and pulls the balloon down.
As the helium-filled balloon rises into the atmosphere, the surrounding air pressure decreases while the pressure inside the balloon remains the same. This causes the helium inside the balloon to expand, making the balloon increase in size. Eventually, the balloon will reach a point where the difference in pressure between the inside and outside of the balloon will be equal, and it will float at that altitude.
helium is lighter that air so rises above the air. similar to oil rising above water.
CO2 is heavier than a mixture of 75% nitrogen and 20% oxygen.
Bread Tide Temperature Balloon Balloon Flag Smoke Prices Heat rises.
The relationship between helium pressure and its effects on gas-filled balloons is that as the pressure of helium inside the balloon increases, the balloon expands and rises. This is because the higher pressure of helium pushes against the walls of the balloon, causing it to inflate and float.
I'm not sure I understand the question but here goes: Helium is lighter [less dense] than air, so a helium filled balloon rises because it floats up on the more dense air.
A balloon filled with a gas less dense than the surrounding air, such as helium or hydrogen, rises because of the principle of buoyancy. The lighter gas inside the balloon creates an upward force that is greater than the weight of the balloon itself, causing it to float upwards.
A helium balloon rises into the air because the density of the helium is lesser than the density of the air, therefore, the balloon rises, trying to reach above the air. Helium is lighter than air, or to be more precise, less dense. Helium gas weighs less than our atmospheric air so it floats. Same goes for hydrogen and a few other pure gases
Because helium is lighter than air. An object in a fluid is buoyed up by a force equal to the weight of the displaced fluid. That's the reason that soap, logs, people, and boats float in water, and bags of hydrogen, hot air, or helium float in ordinary air.
Helium is lighter than air. So helium balloon rises in air.
It will usually burst. As it gets higher, outside air pressure is less, helium in balloon expands until balloon pops.
A hot air balloon rises due to the principle of buoyancy. As the air inside the balloon is heated, it becomes less dense than the surrounding air, causing the balloon to float upwards. This effect is similar to how a helium balloon rises in the atmosphere.