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That's because they are quite easily compressible.
There are no forces holding the gas particles together. (apex)
What else can I help you with?
Why does gas have a variable volume?
That's because they are quite easily compressible. There are no forces holding the gas particles together. (apex)
Why can't gasses change volume?
Actually liquids CAN change volume - they just change less drastically than gases under the same conditions. An obvious example is the functioning of a thermometer. The liquid in the thermometer expands (changes volume) as it gets warmer. Usually the liquid will be in a large reservoir with a narrow tube attached because the volume change is not that big. The change in volume for a gas with the same change in temperature is much more noticeable. Liquids also change their volume with changes in pressure. Again, gases change a lot more than liquids with the same change in pressure - except near the critical point of the liquid. As an example: liquid water at 50 bar and 25 °C will have a density of about 1000 kg/m3. If the pressure is cut in half to 25 bar at 25 °C, the density drops to about 998 kg/m3 - a change of about 0.2%. If you do the same with a gas at 25 °C, the density will change by 50% (250 times the change in the liquid)! The simple reason for this is that liquids are much more dense than gases. The molecules are much closer together so when you start to put pressure on them, they resist compression much more than gases will because they are already so close and repulsive forces between the molecules are much stronger. When pressure is dropped, liquids expand less because - again - the molecules are close together and the attractive forces are much more significant. The spacing of molecules in a liquid is a bit like the situation with Goldilocks - they don't want to be too close or too far apart - they want to be "just right" in their spacing.
Does liquid have fixed volume?
In terms of gases, a fixed volume would mean that the pressure, temperature and the number of molecules can change but the volume, or area in which the molecules lie, must remain constant
What happens when a liquid becomes a gas (apex)?
When a liquid becomes a gas, it undergoes a phase change called vaporization. During vaporization, the particles in the liquid gain enough energy to break free from the forces holding them together in the liquid state. This process can occur through either evaporation (at the surface) or boiling (throughout the liquid).
Does gas have a definite volume and can change volume?
does gas take the shape of it's container and can change volume
Do gasses have volume?
No, nothing can have a negative volume. No such thing.
Why can't liquids change volume but gasses can?
The intermolecular strength is higher in liquids than in gases.
How deos this change in volume affect the density of solids liquids and gasses?
A change in volume with a constant, unchanging Pressure and Temperature results in increased or decreased density, inversely dependent on increase or decrease in volume.
Which country produces the most greenhouse gasses?
united states/apex:)
Which of the following countries produce the most green house gasses (Apex)?
China (APEX)
How are gasses and liquids similar in shape and volume?
ANSWER unlike solids, both liquids and gases can change their shape to fit the container in which they are held. however, gases can also change volume unlike liquids.
Do gasses have a definite volume?
nnoo
What does not have a definite volume?
Gasses and plasmas.
Do gasses have mass and volume?
YEs
Does Air have a volume?
Yes. Air is a gas, gasses are fluids, and fluids have volume.
Do not have definite?
Gases are highly compressible. So they don't have definite volume and pressure. As volume is reduced for a given mass pressure increases. Also as temperature changes then at constant volume pressure changes considerably. Same way for a constant pressure temperature change brings a change in the volume. Moreover gasses do not have a free surface.
Gases do not have definite?
Gases are highly compressible. So they don't have definite volume and pressure. As volume is reduced for a given mass pressure increases. Also as temperature changes then at constant volume pressure changes considerably. Same way for a constant pressure temperature change brings a change in the volume. Moreover gasses do not have a free surface.
