# Can a balloon expand in a vacuum?

## Can a balloon expand in a vacuum?

A partially inflated balloon is placed in a vacuum chamber. It expands to more than double its initial size as the pressure in the chamber decreases.

Do gases expand in a vacuum?

Explanation: For a free expansion into a vacuum, a gas does no work, as there is no resistance on the gas as it expands, i.e. P=0 and therefore the quantity −PΔV=0 . The work done by the system should therefore be negative for a regular expansion, as work is done by the system (the gas) onto the surroundings.

Why does air expand in vacuum?

The volume of the gas has increased and its density has decreased. Let’s make the jar bigger again. Again, those air molecules are still bouncing around at high speed. We’re looking at empty space because the air molecules have all, with no boundaries to stop them, expanded off of the screen.

### Will a balloon expand in space?

A helium-filled balloon can float very high up into the atmosphere, however, it cannot float up into outer space. The balloon can only rise up until the atmosphere surrounding it has the same weight as the helium in the balloon. This happens at about a height of 20 miles (32 kilometers) above Earth’s surface.

How much does air expand in a vacuum?

No, there will not be a pocket of air in space. Gases (like air) expand to fill their containers, and in space there is no container, so it would simply expand until it is the same density as space itself. Answer 5: 1.

What happens to air in a vacuum chamber?

In the atmosphere, surfaces are constantly being bombarded by molecules. Removing the air from a vacuum chamber creates a space which contains few molecules. This allows a much higher evaporation rate for material with less need to elevate the temperature.

#### What happens when air fills a vacuum?

Vacuums never “suck” air. What they do is present an empty space and then air pressure forces the air into the vacuum. Air pressure is not uniform throughout the atmosphere. The lower the altitude, the higher the air pressure; thus, as you move higher, the air pressure decreases.

How does a balloon expand?

Air molecules collide into the balloon with the same energy inside and outside the balloon. These molecules now collide into the balloon with more energy resulting in increased pressure. The increased pressure causes the balloon to expand.

What happens when air enters a vacuum?

What’s actually happening there is that the air pressure around the box is forcing air into the space with no pressure. The air that fills the box is being pushed by air pressure into the empty space. Vacuums never “suck” air. Gravity pulls on the atmosphere, compressing it, and creating pressure.

## What would happen in the vacuum of space?

The vacuum of space will pull the air from your body. Without air in your lungs, blood will stop sending oxygen to your brain. You’ll pass out after about 15 seconds. 90 seconds after exposure, you’ll die from asphyxiation.

Is there air in a vacuum chamber?

A vacuum chamber is a rigid enclosure from which air and other gases are removed by a vacuum pump. This results in a low-pressure environment within the chamber, commonly referred to as a vacuum.

Does air rush into vacuum?

If you put a hole in the bottle, air rushes in. The reason the vacuum of space does not attract the molecules is because there is no suction to the vacuum of space — there is no air pressure forcing things into the vacuum.