Can you inflate a balloon in a vacuum?

Air Pressure in a Vacuum This greater pressure is what “inflates” the balloon in the first place. The air molecules in this space balloon would expand at an extremely rapid rate, quickly pushing the rubber walls past their elasticity limits, causing the balloon to explode.

How much air does a balloon need?

A standard 11″ balloon holds 0.403 cubic foot of air (11.4 L) at standard atmospheric conditions. We want to stretch our balloon to the limit, so it will presumably hold more than this. So let’s say 15 L. This seems a reasonable estimate based on how much you can over-inflate standard balloons.

What is the air pressure inside a party balloon?

So, how much pressure can an inexpensive, thin-wall latex balloon withstand? One experiment shows that the balloon reaches a relatively constant pressure of 810 mmHg until it gets close to its maximum elasticity point and then increases to 820, 830 and finally 840 mmHg when it pops.

Why does air expand in a vacuum?

The vacuum creates an extremely low concentration of anything contained inside, such is the job of a vacuum. Since the concentration is so low, the particles have much more room to move around. The density of the particles decrease and expand because they are not held together.

How much air can the average balloon hold?

A standard helium balloon can lift approximately 0.03 pounds or 14 grams.

How many Litres of air is in a balloon?

Accordingly, a spherical balloon with a diameter of 30 cm has a volume of 14.1 litres and sufficient buoyancy for a weight of about 7 to 8.5 g.

Is the pressure inside and outside a balloon the same?

It isn’t the same. The pressure inside the balloon is higher than the pressure on the outside. A simple and intuitive way to look at it is if you poke a hole in the balloon, the air flows out. And the direction of airflow is always from higher to lower pressure.

Does a helium balloon float in a vacuum?

No, a helium balloon floats because helium is lighter than ordinary air. Air, then, sinks to the bottom, “pushing” the helium balloon up. Without air (or any particles) in the vacuum, there is nothing heavier than the helium in the balloon. So the balloon itself sinks.

What is the pressure inside a normal party balloon?

The pressure inside a normal party balloon is a pressure above the atmospheric pressure and is called manometric pressure. The value of this pressure will depend on factors, such as the type of material of the balloon and how much air has been pumped up in the balloon. The pressure might be in the order of mBar.

How many millibars does it take to inflate a balloon?

Two pounds over one bar would be adding less than 200 millibars give or take. It takes about 30mmhg to start inflation, as you blow the balloon expands and the pressure requirement drops to about 25mmhg. By the time you get a neck formed, the pressure will rise to over 60mmhg.

How do you know if a balloon is under inflated?

Air inflation is advised for balloons inflated to less than 9 inches round. A standard 12-inch balloon is considered under inflated when it is round and over inflated when it is pear-shaped (where the balloon begins to bulb out at the bottom). Changes in temperature will cause the gas inside the balloons to expand or contract.

What comes in a balloon inflate kit?

Each Kit comes complete with a pre-filled portable, disposable Helium tank, inflation nozzle (attached), and a package of Assorted Color E-Z Safety Seal® Valved Latex Balloons. No more hand-tying balloons, driving through traffic with balloons blocking your view. Simply inflate balloons on the spot at the Party or Event in just minutes!