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hassan
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∙ 11y ago
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Why are boiling stones used in esterification?
Boiling chips provide a surface on which vapor bubbles can form. This bubble formation helps prevent superheating and bumping of the liquid.
What gas condenses at the top of a test tube?
Gas produced during reaction will produce bubbles due to the property of surface tension of the liquid. Air or gas is less denser than the liquid in which it is produced. Also due to Archimedes principle, the weight of the liquid displaced by the air or gas bubble will be more than that of bubble itself. So upward buoyant force is heavy which pushes the bubbles to the top of the test tube.
What occurs when a liquid changed to a gas below its surface as well as on the surface?
When a liquid changes to a gas below its surface as well as at the surface, the liquid is at a temperature equal to or greater than its boiling point.
What air bubbles are?
A bubble is a hollow golbule of gas! The wall is 3 millionths inch thick! Another definition of a bubble is air trapped inside liquid! The liquid is usally soap and water!
What is the change of a liquid to a gas under the surface of a liquid?
At the surface of the liquid the phenomenon is called evaporation. In the entire voume of the liquid the phenomenon is called vaporization.
What happen to gas bubble volume as they rise in water?
As a bubble rises to the surface of a liquid the pressure on it is going DOWN. Therefore the bubble expands, and usually bursts at the surface.
What instrument measures the tilt of a surface - one that has an air bubble in a liquid?
A spirit level.
Is a bubble a solid a liquid or a gas?
It's a gas that is inside a liquid (the bubble is the liquid).
Is a bubble a liquid gas or solid?
It's a gas that is inside a liquid (the bubble is the liquid).
Do gases have free surface?
Gases cannot form a free surface on their own. However, gases do have a free surface at the boundary between gas and liquid, such as the free surface of the sea, or the boundary between the liquid of a soft drink and each carbon dioxide bubble rising in it.
What type of reaction is foam?
Its not a reaction strictly speaking. Foam is when gas is suspended by a liquid bubble on the surface of a liquid. Foam occurs when the liquids are of a certain density which accomodates the formation of these bubbles.
How does gravity affect the shape of soap bubbles?
Gravity does affect the shape and size of a soap bubble. From the top of my head, an air-borne bubble's surface would have higher density at the bottom (part facing ground).In reality, a bubble is never a perfect sphere and is always heavier at the bottom. If you blow a big bubble and look at it closely, you would likely notice a slight dimp at the bottom of the sphere aka the excess liquid which has accumulated at the bottom due to gravity. This affects the shape of the bubble as the weight of the excess liquid pulls down on the surface area of the sphere.
Is a basketball a bubble?
It is. A bubble is air closed with solid or liquid around it. So scientifically, it's a bubble!
Why are boiling stones used in esterification?
Boiling chips provide a surface on which vapor bubbles can form. This bubble formation helps prevent superheating and bumping of the liquid.
How do soap bubbles become round?
A sphere is the shape that has the largest volume and smallest surface area. the surface tension pulls the surface of the bubble in but the volume of air inside the bubble remains constant so the bubble wants to become a sphere.
What liquid have the strongest surface tension?
Mercury is the liquid with the strongest surface tension.
Why does a bubble float up?
If you are asking about a bubble in a liquid, the answer is that the bubble has lower density (the gas inside is "lighter") than the surrounding liquid. If you are asking about a soap bubble, the answer is that air currents carry the bubble up. The bubble itself is not lighter than air (unless filled with another gas) but the film making the bubble is so thin and light that air currents can move it easily.
