Helium gas is added to a balloon already partially filled with helium gas . The balloon inflates because
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the helium gas molecules inside the balloon are like enthusiastic party guests, always looking for a good time. When more helium gas is added, it's like inviting more guests to the party! The new helium molecules rush in, bouncing around and bumping into the existing helium molecules, causing them to spread out and create more space inside the balloon. That's why the balloon inflates, giving all the little helium molecules a chance to mingle, dance, and have a bewitching balloon bash!
the addition of helium gas increases the pressure inside the balloon. When helium gas is added to a balloon, it increases the number of gas particles inside the balloon, causing the gas pressure to increase. According to Boyle's Law, at a constant temperature, the volume of a gas is inversely proportional to its pressure.
So when additional helium gas is added to the partially filled balloon, the increased gas pressure inside the balloon causes the balloon to inflate. This happens because the higher pressure pushes against the balloon's elastic material, causing it to stretch and expand in size.
When helium gas is added to a balloon that is already partially filled with helium gas, the balloon inflates because of the principle of buoyancy.
To understand why the balloon inflates, we need to first understand the concept of buoyancy. Buoyancy is the upward force exerted on an object submerged in a fluid (in this case, the fluid is the air). It occurs due to the difference in pressures caused by the weight of the fluid displaced by the object.
In the case of a helium-filled balloon, the gas inside the balloon is less dense than the surrounding air. Since helium is lighter than air, it experiences an upward force due to buoyancy. This upward force counteracts the force of gravity pulling the balloon down, causing the balloon to float upwards.
Now, when we add more helium gas to the balloon that is already partially filled, we increase the volume of the gas inside. As a result, the overall density of the balloon decreases even further. This decrease in density causes the upward buoyant force to increase, resulting in the balloon inflating and becoming more buoyant.
In simple terms, the added helium gas makes the balloon lighter and less dense compared to the air around it. This allows the balloon to float upwards, causing it to inflate.