Gas vs. Vapor

Main Difference

People find it difficult to differentiate it between the gas and vapor as the latter is also a kind of the gas, and it is not labeled as any other separate state of matter. The gas is the state of matter which has the least intermolecular attraction between its molecules and is invisible to the naked eye. Contrary to this, the vapor is the equilibrium state between the gases and liquid, which can bounce back to its original form, liquid after the pressure is exerted on it and the temperature is kept constant. Here it should be noted that the gaseous material we get in from the liquids at the equilibrium state is known as the vapor. The gaseous material we get from the water (liquid) is known as water vapor, not as the water gas.

Gas vs. Vapor — Is There a Difference?
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Difference Between Gas and Vapor

Gas vs. Vapor

The gas is one of the four states of matter, whereas vapor is a gaseous state where it is in the equilibrium state in between the gas and the liquid.

Gas vs. Vapor

The gas would not change its state at the room temperature or the neutral state. Contrary to this, at room temperature, the vapor get back to its original state that is either liquid or the solid.

Gas vs. Vapor

The change in temperature and pressure is necessary in order to change the phase of the gas. On the other hand, change in pressure is required for bringing back the vapor to the original state.

Gas vs. Vapor

The gas cannot be seen by the naked eye, whereas vapors are visible to the naked eye as they are under the constant transition.

Gasnoun

Matter in a state intermediate between liquid and plasma that can be contained only if it is fully surrounded by a solid (or in a bubble of liquid) (or held together by gravitational pull); it can condense into a liquid, or can (rarely) become a solid directly.

A lot of gas had escaped from the cylinder.

Vapornoun

Cloudy diffused matter such as mist, steam or fumes suspended in the air.

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Gasnoun

A chemical element or compound in such a state.

The atmosphere is made up of a number of different gases.

Vapornoun

The gaseous state of a substance that is normally a solid or liquid.

Gasnoun

(uncountable) A flammable gaseous hydrocarbon or hydrocarbon mixture (typically predominantly methane) used as a fuel, e.g. for cooking, heating, electricity generation or as a fuel in internal combustion engines in vehicles.

Gas-fired power stations have largely replaced coal-burning ones.

Vaporverb

(intransitive) To become vapor; to be emitted or circulated as vapor.

Gasnoun

(countable) A hob on a gas cooker.

She turned the gas on, put the potatoes on, then lit the oven.

Vaporverb

(transitive) To turn into vapor.

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Gasnoun

(US) Methane or other waste gases trapped in one's belly as a result of the digestive process.

My tummy hurts so bad, I have gas.

Vaporverb

(intransitive) To use insubstantial language; to boast or bluster.

Gasnoun

(slang) A humorous or entertaining event or person.

He is such a gas!

Vapornoun

a visible suspension in the air of particles of some substance

Gasnoun

(baseball) A fastball.

The closer threw him nothing but gas.

Vapornoun

the process of becoming a vapor

Gasnoun

Arterial or venous blood gas.

Gasnoun

Gasoline; a derivative of petroleum used as fuel.

Gasnoun

(US) Gas pedal.

Gasverb

(transitive) To kill with poisonous gas.

Gasverb

(intransitive) To talk, chat.

Gasverb

(intransitive) To emit gas.

The battery cell was gassing.

Gasverb

(transitive) To impregnate with gas.

to gas lime with chlorine in the manufacture of bleaching powder

Gasverb

(transitive) To singe, as in a gas flame, so as to remove loose fibers.

to gas thread

Gasverb

(US) To give a vehicle more fuel in order to accelerate it.

The cops are coming. Gas it!

Gasverb

(US) To fill (a vehicle's fuel tank) with fuel.

Gasadjective

comical, zany; fun, amusing

Mary's new boyfriend is a gas man.It was gas when the bird flew into the classroom.

Gasnoun

the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container

Gasnoun

a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely

Gasnoun

a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines

Gasnoun

a state of excessive gas in the alimentary canal

Gasnoun

a pedal that controls the throttle valve;

he stepped on the gas

Gasnoun

a fossil fuel in the gaseous state; used for cooking and heating homes

Gasverb

attack with gas; subject to gas fumes;

The despot gassed the rebellious tribes

Gasverb

show off

Comparison Chart

GasVapor
One of the four states of matter.It is a gaseous state where the molecules are in the equilibrium state in between the gas and the liquid.
Room Temperature
Remains gas.Vapor gets back to its original state that is either liquid or the solid.
Phase Change
The change in temperature and pressure is necessary in order to change the phase.Change in pressure is required for bringing back the vapor to the original state.
Visibility
Not VisibleGenerally visible

What is Gas?

The gas is classified as one of the four states of matter; they have distinct feature of occupying the available space regardless of the shape and volume. This feature is because of the presence of very little intermolecular attraction between the molecules. The other three states of matter are solid, liquid and plasma. The solids have fixed shape and the volume, whereas the liquids have fixed volume but lack the fix shape feature; they take the shape of the container they are poured in. The gaseous molecules are constantly moving independently due to the weak force of attraction present between the molecules. The gas can fill out the container of any of the size as the gaseous molecules are constantly on the move. The compounds which even remain in the gaseous state are classified as the gas. For example, the Carbon dioxide is classified as gas, that is because it remains gas even in the room temperature, or in any other words, we can say that CO2 never changes its state of matter. Therefore, you will never hear the term Carbon dioxide vapor; it is always referred as a carbon dioxide gas.

What is Vapor?

The vapor is a type of gas that is in the equilibrium state in between the gas and water; it can bounce back into its original liquid state if the pressure is applied on it and the temperature is kept constant. The original state of the vapor can also be solid, so the vapor in its neutral phase at the room temperature should either be liquid or the solid. The vapors are more easily compressible as compared to the gases as they are constantly under the transition. When vapor has to move back to its original state, it is required that the pressure should be exerted on it and the change in temperature is not required. The vapor is the term used for the gaseous molecule that can either be the liquid at the room temperature. The water evaporated from the water is described as the water vapor, and when the pressure is exerted by the water vapor, it turns back into the liquid state. In other words, water vapor is the water present in the gaseous state. The vapors are visible to the naked eyes as the physical change takes place in it.