The diagram above illustrates a beaker of water being heated. It is observed that as the bubbles rise they get bigger in size.The reason for this observatio...

Answer Details

The reason for the observation that the bubbles get bigger as they rise is because the atmospheric pressure on the bubbles decreases. When water is heated, the temperature of the water increases, causing the air and other gases dissolved in the water to become less soluble and form bubbles. As these bubbles rise to the surface of the water, the pressure on them decreases, causing the bubbles to expand and become bigger in size. This is because the atmospheric pressure decreases with height and the pressure inside the bubble decreases as the bubble rises to a lower pressure environment. This causes the air or gas inside the bubble to expand, making the bubble bigger.