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Why Real gases do not obey gas laws?

Updated: 8/11/2023
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Real gases do not obey gas laws because these gases contains forces of attractions among the molecules..and the gases which do not contain forces of attraction among their molecules are called ideal gases and they obey gas laws.

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The real gases do not obey gas law at high pressure and low temp: because when the temp: of a gas decreases then its kinetic energy also decreases which tend to a gas change in the form of liquid, due to this real gases do not obey gas laws...

Gas law can only be applied on ideal gas because an ideal gas has no attractive forces among the molecules.

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no real gas do not obey gas law under normal condition but under high temperature & low pressure they become ideal gas to some extent.

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Real Gases do not strictly follow the gas laws.

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Q: Why Real gases do not obey gas laws?
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Do real gases follow the ideal gas equation?

The gas which obeyed the gas laws at all conditions of temperature and pressure would be called an ideal gas. They don't actually exist. Real gases obey the gas laws approximately under moderate conditions. Some other points of distinction that can be considered are:Ideal gases are incompressible, non-viscous & non-turbulent.Real gases are compressible, viscous & turbulent.


Would a gas whose molecules were true geometric points obey the ideal gas law?

If gas molecules were true geometric points (ie had zero volume) AND had zero intermolecular interaction (such as attraction or repulsion), then the gas would obey the ideal gas law. Gases composed of small, non-interactive molecules (such as helium gas) obey the ideal gas law pretty well (as long as the gas is low density and temperature is rather high). For non-ideal gases, at least two correction factors are often used to modify the ideal gas law (correcting for non-zero volume of gas molecule and intermolecular attraction) such as in the Van der Waals equation for a real gas.


Ideal gas law behavior of real gases under?

the ideal gas law describes that the behavior of real gases under all conditions of temperature and pressure.


At what temperature does a real gas obey the ideal gas laws over a wide range of pressure?

Real gases behave most like ideal gases at high temperatures and low pressures.CASE 1 :- (At Higher Temperatures)when the temperature is high the kinetic energy of molecules increases and the intermolecular attractions among the atoms decreases.The volume of the gas molecules become negligible compared to volume of the vessel. therefore the real gases act like ideal At Higher Temperatures.CASE 2 :- (At Lower Temperatures)At low temperatures volume of the container is larger. therefore intermolecular attractive forces are negligible and the volume of the particles also become negligible compared with the volume of the vessel.therefore the real gases act like ideal At Lower Temperatures.


What is an imaginary gas which perfectly obey the gas laws?

This is a gas with a very low concentration; also gas molecules may have only elastic collisions.

Related questions

The temp at which real gases obey the ideal gas laws over a wide range of pressure what is this temp known as?

boyles temprature


Do real gases follow the ideal gas equation?

The gas which obeyed the gas laws at all conditions of temperature and pressure would be called an ideal gas. They don't actually exist. Real gases obey the gas laws approximately under moderate conditions. Some other points of distinction that can be considered are:Ideal gases are incompressible, non-viscous & non-turbulent.Real gases are compressible, viscous & turbulent.


Is boyles law applicable to noble gases?

Yes, they obey the gas law for ideal gases.


What is the difference between the Ideal Gas Law and Kinetic Molecular Theory?

KMT talks about the properties of real gases while ideal gas laws discuss only the ideal gases..


What state of matter obeys Boyle's laws?

That is a law that applies to an ideal gas, and (as an approximation) to real gases as well.


Would a gas whose molecules were true geometric points obey the ideal gas law?

If gas molecules were true geometric points (ie had zero volume) AND had zero intermolecular interaction (such as attraction or repulsion), then the gas would obey the ideal gas law. Gases composed of small, non-interactive molecules (such as helium gas) obey the ideal gas law pretty well (as long as the gas is low density and temperature is rather high). For non-ideal gases, at least two correction factors are often used to modify the ideal gas law (correcting for non-zero volume of gas molecule and intermolecular attraction) such as in the Van der Waals equation for a real gas.


How does an ideal gas diff from a real gas?

Ideal gases are gases with negligible intermolecular forces and molecular volumes. Real gases have intermolecular forces and have definite volumes at room temperature and pressure (RTP).


Ideal gas law behavior of real gases under?

the ideal gas law describes that the behavior of real gases under all conditions of temperature and pressure.


Can the volume of the particles in a real gas can be ignored?

No, that's why you call it real gas. For an ideal gas the size of the particle, that means the volume of interaction is zero, for real gases not. An effect of real gases is the cool down (or heat up) of an gas which is expanded (compressed). Another effect is that you can get liquids.


Why ammonia doesnt behave as an ideal gas?

NH3, as in Ammonia, like all real gases, are not ideal. Ideal gases follow the ideal gas laws, but ammonia does not adhere to a few of them. First of all, the volume of its molecules in a container is not negliggible. Next, NH3 molecules have intermolecular hydrogen bonding, which is a strong intermolecular bond. Thus, the forces of attaction between molecules is not neglible. All real gases have a certain degree of an ideal gas, but no real gas is actually ideal, with H2 being the closest to ideal.


How does the heat affect the gas?

by changing the gases to real water


Is N2 noble gas?

NH3, as in Ammonia, like all real gases, are not ideal. Ideal gases follow the ideal gas laws, but ammonia does not adhere to a few of them. First of all, the volume of its molecules in a container is not negliggible. Next, NH3 molecules have intermolecular hydrogen bonding, which is a strong intermolecular bond. Thus, the forces of attaction between molecules is not neglible. All real gases have a certain degree of an ideal gas, but no real gas is actually ideal, with H2 being the closest to ideal.