When additional helium gas is added to a balloon that is already partially filled with helium gas, the balloon inflates because of the principle of buoyancy. Helium gas is lighter than air, so it has a lower density. When the balloon is filled with helium gas, the gas inside the balloon becomes less dense than the surrounding air. This difference in density creates an upward force called buoyancy that causes the balloon to rise and inflate.
When more helium gas is added to the balloon, the density inside the balloon decreases even further, making the balloon even lighter compared to the surrounding air. This increases the buoyant force acting on the balloon, causing it to inflate and rise even more.
In simple terms, the additional helium gas added to the balloon increases the overall volume of the gas inside. Since the gas is lighter than air, the balloon inflates and rises as the buoyant force overcomes the gravitational force pulling it downwards.
If Helium gas is added to a balloon already partially filled with helium gas why does the balloon inflate
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