Solution : Gases do not have a definite shape or volume
because the molecules in gases are very loosely packed
, they have large intermolecular spaces and hence they move around. The force of attraction between molecules is also very less, as a result gases acquire any shape or any volume.
Why don t gases have a definite shape or volume?
Gases don't have a fixed shape or a fixed volume.
The particles move around all the time and spread out
. This is why a gas fills its container. A gas can be compressed into a very small space – this pushes the particles closer together.
Does gas have no shape or volume?
Three states of matter exist – solid, liquid, and gas. Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container.
Gases have no definite shape or volume
.
Does a gas have a definite shape and volume?
A gas has neither a definite shape nor a definite volume
. Like liquids, gases are fluids. The particles in a gas can move around one another freely.
Why do gases have no set volume?
Gas is a state of matter that has no fixed shape and no fixed volume. … When more gas particles enter a container, there is less
space
for the particles to spread out, and they become compressed. The particles exert more force on the interior volume of the container. This force is called pressure.
What has definite volume but no definite shape?
A solid has definite volume and shape, a
liquid
has a definite volume but no definite shape, and a gas has neither a definite volume nor shape.
What does definite volume mean?
Definite (for both shape and volume) means
that the container makes no difference whatsoever
. If 5-liters of liquid water is poured into a 10-liter container, the liquid would occupy 5-liters of the container and the other 5-liters would be empty.
Which state of matter does not have its own shape but does have a volume?
Solids have definite shape and definite volume.
Gas
has no definite shape or definite volume.
Why solid matter has definite shape and volume but gas does not?
Solution : (a) Solids have definite shape and definite volume because the molecules in solid are closely packed and in fixed positions. … (c) Gases do not have a definite shape or volume because the
molecules in gases are very loosely packed
, they have large intermolecular spaces and hence they move around.
Which states of matter has the strongest attractive force?
As the temperature continues to drop, the matter forms a solid. Due to the solid's low kinetic energy, particles have no “time” to move around, the particles have more “time” to be attracted. Therefore,
solids
have the strongest intramolecular forces (because they have the strongest attraction).
What has no definite shape or volume and is a highly energized gas?
A solid has definite volume and shape, a
liquid
has a definite volume but no definite shape, and a gas has neither a definite volume nor shape. Figure 3.3. 2: A Representation of the Solid, Liquid, and Gas States. (a) Solid O
2
has a fixed volume and shape, and the molecules are packed tightly together.
Does a gas have a definite mass?
Solids are the ones who have rigid structure and which have a definite volume and shape. … – Therefore, gases take the shape of the container and occupy the complete volume of that particular container. – Thus, the correct answer to this question is that
gases have definite mass but no definite volume and shape
.
Does oxygen have a definite shape?
Like liquids,
gases have no definite shape
, but unlike solids and liquids, gases have no definite volume either. The change from solid to liquid usually does not significantly change the volume of a substance. … No definite shape (takes the shape of its container)
What happens when gas is cooled?
If a gas is cooled,
its particles will eventually stop moving about so fast and form a liquid
. This is called condensation and occurs at the same temperature as boiling. … Evaporation is dependent on individual particles gaining enough energy to escape the surface of the liquid and become gas particles.
What happens when gas expands?
As the volume of a gas expands,
the overall temperature tends to drop because there are fewer molecules per any given volume
. According to the ideal gas law PV=nRT, P=(n/V) RT, the pressure can be constant with decreasing molecular density only with increasing temperature.
What are the 4 properties of gas?
Because most gases are difficult to observe directly, they are described through the use of four physical properties or macroscopic characteristics:
pressure, volume, number of particles
(chemists group them by moles) and temperature.
