Plasma vs. Gas — What's the Difference?
By Tayyaba Rehman & Urooj Arif — Updated on May 2, 2024
Plasma, often called the fourth state of matter, is ionized and conducts electricity, unlike gases which consist of neutral atoms or molecules.
Difference Between Plasma and Gas
Table of Contents
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Key Differences
Plasma is a state of matter where gas has been energized to the point where some of the electrons are stripped away from their atoms, creating ions. This ionization makes plasma electrically conductive. In contrast, gas is composed of neutral atoms or molecules and does not conduct electricity due to the absence of free charged particles.
Plasma typically occurs at higher temperatures or under strong electromagnetic fields, which provide the energy needed to ionize the gas. Whereas gases exist naturally at a wide range of temperatures and pressures without the need for ionization.
In plasma, the interactions between particles are complex due to the presence of charged ions and electrons, which respond dynamically to electromagnetic fields. On the other hand, the interactions in gases are mainly due to collisions between neutral molecules.
Plasma is often visible, emitting light due to the energy released when electrons recombine with ions. This is why phenomena like neon signs and auroras are bright and colorful. Conversely, gases are usually invisible, although they can become visible when condensed or when chemical reactions occur within them.
Due to its unique properties, plasma is used in applications such as plasma cutting, neon signage, and fusion research. Gas, however, is used in a broader range of applications like heating, propulsion systems, and chemical synthesis, reflecting its more stable and manageable nature.
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Comparison Chart
Particle Charge
Ionized particles (positive and negative)
Neutral particles
Conductivity
Conducts electricity
Does not conduct electricity
Typical Occurrence
In high-temperature environments or under electromagnetic fields
At a wide range of temperatures and pressures
Visibility
Often emits light and visible
Generally invisible
Applications
Neon signs, plasma cutting, fusion research
Heating, propulsion, chemical reactions
Compare with Definitions
Plasma
Ionized state of matter containing charged particles.
The sun is composed largely of plasma.
Gas
Invisible under normal conditions.
Carbon dioxide gas is invisible and odorless.
Plasma
Conductive and responds to electromagnetic fields.
Plasma TVs use ionized gas to display images.
Gas
One of the four fundamental states of matter, consisting of loose molecules.
Oxygen that we breathe is in the gas state.
Plasma
More rare on Earth in natural conditions compared to gases.
Lightning is a natural occurrence of plasma.
Gas
Does not have a fixed shape or volume, filling any container uniformly.
Helium gas fills balloons and makes them float.
Plasma
Found in environments where high energy is present.
Plasma is created in labs to study nuclear fusion.
Gas
Compressible and expandable, adapting to pressure changes.
Natural gas is compressed for storage and transport.
Plasma
Emits light due to the movement and recombination of electrons.
The plasma in neon signs glows brightly.
Gas
Used widely in both industrial and domestic contexts.
Gas stoves use natural gas for cooking.
Plasma
The clear, yellowish fluid portion of blood, lymph, or intramuscular fluid in which cells are suspended. It differs from serum in that it contains fibrin and other soluble clotting elements.
Gas
Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma).A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g.
Plasma
Blood plasma, especially when sterilized and depleted of cells for transfusion.
Gas
A substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid)
Hot balls of gas that become stars
Poisonous gases
Plasma
Protoplasm or cytoplasm.
Gas
Short for gasoline
We stopped for gas
Plasma
The fluid portion of milk from which the curd has been separated by coagulation; whey.
Gas
An entertaining or amusing person or situation
The party would be a gas
Plasma
(Physics) An electrically neutral, highly ionized phase of matter composed of ions, electrons, and neutral particles. It is distinct from solids, liquids, and gases.
Gas
Kill or harm by exposure to gas
My son was gassed at Verdun
Plasma
Of or relating to a flat-panel display used in televisions, made up of an array of tiny cells each containing a gaseous mixture of xenon and neon that is changed into a plasma state to illuminate a phosphor coating on the inside of the cell.
Gas
Talk excessively about trivial matters
I thought you'd never stop gassing
Plasma
(physics) A state of matter consisting of partially ionized gas and electrons.
Gas
Fill the tank of (a motor vehicle) with petrol
After gassing up the car, he went into the restaurant
Plasma
(hematology) A clear component of blood or lymph containing fibrin.
Gas
Very amusing or entertaining
Ruthie, that's gas—you're a gem
Plasma
(hematology) Blood plasma, free of suspended cells, used in transfusions.
Gas
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.
Plasma
(mineralogy) A variety of green quartz, used in ancient times for making engraved ornaments.
Gas
A substance in the gaseous state.
Plasma
A mixture of starch and glycerin, used as a substitute for ointments.
Gas
Any of various mixtures of flammable gases used for lighting, heating, or cooking.
Plasma
A visual effect in which cycles of changing colours are warped in various ways to give the illusion of liquid organic movement.
Gas
Gasoline.
Plasma
A variety of quartz, of a color between grass green and leek green, which is found associated with common chalcedony. It was much esteemed by the ancients for making engraved ornaments.
Gas
The speed control of a gasoline engine. Used with the
Step on the gas.
Plasma
The viscous material of an animal or vegetable cell, out of which the various tissues are formed by a process of differentiation; protoplasm.
Gas
A gaseous asphyxiant, irritant, or poison.
Plasma
Unorganized material; elementary matter.
Gas
A gaseous anesthetic, such as nitrous oxide.
Plasma
A mixture of starch and glycerin, used as a substitute for ointments.
Gas
Flatulence.
Plasma
Same as blood plasma.
Gas
Flatus.
Plasma
A state of matter in which charged particles such as electrons and atomi nuclei have sufficiently high energy to move freely, rather than be bound in atoms as in ordinary matter; it has some of the properties of a gas, but is a conductor of electricity.
Gas
(Slang) Idle or boastful talk.
Plasma
Colorless watery fluid of blood and lymph containing no cells and in which erythrocytes and leukocytes and platelets are suspended
Gas
(Slang) Someone or something exceptionally exciting or entertaining
The party was a gas.
Plasma
A green slightly translucent variety of chalcedony used as a gemstone
Gas
To treat chemically with gas.
Plasma
(physical chemistry) a fourth state of matter distinct from solid or liquid or gas and present in stars and fusion reactors; a gas becomes a plasma when it is heated until the atoms lose all their electrons, leaving a highly electrified collection of nuclei and free electrons;
Particles in space exist in the form of a plasma
Gas
To overcome, disable, or kill with poisonous fumes.
Gas
To give off gas.
Gas
(Slang) To talk excessively.
Gas
Matter in an intermediate state 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 by deposition.
A lot of gas had escaped from the cylinder.
Gas
(uncountable) A flammable gaseous hydrocarbon or hydrocarbon mixture used as a fuel, e.g. for cooking, heating, electricity generation or as a fuel in internal combustion engines in vehicles, especially natural gas.
Gas-fired power stations have largely replaced coal-burning ones.
Gas
Poison gas.
The artillery fired gas shells into the enemy trenches.
Gas
A chemical element or compound in such a state.
The atmosphere is made up of a number of different gases.
Gas
(countable) A hob on a gas cooker.
She turned the gas on, put the potatoes on, then lit the oven.
Gas
(uncountable) Methane or other waste gases trapped in one's belly as a result of the digestive process; flatus.
My tummy hurts so bad – I have gas.
Gas
(slang) A humorous or entertaining event or person.
Gas
(slang) Frothy or boastful talk; chatter.
Gas
(baseball) A fastball.
The closer threw him nothing but gas.
Gas
Arterial or venous blood gas.
Gas
Marijuana, typically of high quality.
Gas
, a light derivative of petroleum used as fuel.
Gas
Ellipsis of gas pedal
Gas
An internal virtual currency used in Ethereum to pay for certain operations, such as blockchain transactions.
Gas fee
Gas
(transitive) To attack or kill with poison gas.
The Nazis gassed millions of Jews during the Holocaust.
He never fully recovered after he was gassed on the Western Front.
Gas
To talk in a boastful or vapid way; chatter.
Gas
To impose upon by talking boastfully.
Gas
(intransitive) To emit gas.
The battery cell was gassing.
Gas
(transitive) To impregnate with gas.
To gas lime with chlorine in the manufacture of bleaching powder
Gas
(transitive) To singe, as in a gas flame, so as to remove loose fibers.
To gas thread
Gas
(US) To give a vehicle more fuel in order to accelerate it.
The cops are coming. Gas it!
Gas
(US) To fill (a vehicle's fuel tank) with fuel.
Gas
(slang) comical, zany; fun, amusing.
Mary's new boyfriend is a gas man.
It was gas when the bird flew into the classroom.
Gas
An aëriform fluid; - a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be permanently elastic, as oxygen, hydrogen, etc., in distinction from vapors, as steam, which become liquid on a reduction of temperature. In present usage, since all of the supposed permanent gases have been liquified by cold and pressure, the term has resumed nearly its original signification, and is applied to any substance in the elastic or aëriform state.
Gas
A complex mixture of gases, of which the most important constituents are marsh gas, olefiant gas, and hydrogen, artificially produced by the destructive distillation of gas coal, or sometimes of peat, wood, oil, resin, etc. It gives a brilliant light when burned, and is the common gas used for illuminating purposes.
Gas
Same as gasoline; - a shortened form. Also, the accelerator pedal of a motor vehicle; used in the term " step on the gas".
Gas
The accelerator pedal of a motor vehicle; used in the term " step on the gas".
Gas
Same as natural gas.
Gas
An exceptionally enjoyable event; a good time; as, The concert was a gas.
Gas
To singe, as in a gas flame, so as to remove loose fibers; as, to gas thread.
Gas
To impregnate with gas; as, to gas lime with chlorine in the manufacture of bleaching powder.
Gas
To expose to a poisonous or noxious gas
Gas
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
Gas
A fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
Gas
A volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
Gas
A state of excessive gas in the alimentary canal
Gas
A pedal that controls the throttle valve;
He stepped on the gas
Gas
A fossil fuel in the gaseous state; used for cooking and heating homes
Gas
Attack with gas; subject to gas fumes;
The despot gassed the rebellious tribes
Gas
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Common Curiosities
Can we see gases?
Gases are typically invisible, though they can be made visible under certain conditions like condensation or during chemical reactions.
How do you create plasma?
Plasma is created by heating a gas or exposing it to strong magnetic fields until it ionizes.
What are the everyday uses of gases?
Common uses include heating, in aerosol propellants, and in refrigeration systems.
What is plasma mainly composed of?
Plasma is composed of free electrons, ions, and neutral particles.
Why does plasma conduct electricity?
The free electrons and ions in plasma allow it to conduct electricity.
What type of plasma is used in medical applications?
Cold plasma is used for sterilizing medical equipment and even in wound treatment.
How are gases typically stored and transported?
Gases are compressed into cylinders or liquefied for easier transport.
Is plasma always hot?
While plasma is generally associated with high temperatures, there are also cold plasmas used in industrial applications.
How does temperature affect gases and plasma?
Higher temperatures can convert gases into plasma by providing energy for ionization.
Do gases conduct electricity?
Under normal conditions, gases do not conduct electricity, but they can become conductive if ionized into plasma.
What is a common visual example of plasma?
Neon signs and plasma balls are common examples of plasma.
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Written by
Tayyaba RehmanTayyaba Rehman is a distinguished writer, currently serving as a primary contributor to askdifference.com. As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.
Co-written by
Urooj ArifUrooj is a skilled content writer at Ask Difference, known for her exceptional ability to simplify complex topics into engaging and informative content. With a passion for research and a flair for clear, concise writing, she consistently delivers articles that resonate with our diverse audience.