Ideal Gas Assumptions: Can it Turn into a Liquid?

In summary, the conversation discusses the assumptions of the ideal gas law and whether it is accurate for gases near the temperature at which they turn into liquids. It is stated that the ideal gas law assumes gas particles do not interact and that solids have particles that bond together to maintain a rigid shape. It is also mentioned that the ideal gas law is most accurate for monoatomic gases at high temperatures and low pressures. However, it may still be used for temperatures near condensation depending on the accuracy needed and the specifics of the experiment.
  • #1
GrizzlyBat
36
0
I was wondering if it assumed the gas could not turn into a liquid?
 
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  • #2
GrizzlyBat said:
I was wondering if it assumed the gas could not turn into a liquid?

You need to be a bit more "explanatory" with your question. For example, it is clearly stated as part of the ideal gas law assumption that the gas particles do not interact with one another other than making elastic collisions. Did you understand this part of the ideal gas law?

Now think about what a "solid" is. A "solid", by definition, means that the particle form BONDS with each other to be able to maintain a rigid shape.

Does that answer your question?

Zz.
 
  • #3
Nah, yeah that is what I thought. Just was not sure. So does that mean for a monochromatic gas that is near the temperature at which it turns into a liquid, the ideal gas law is not so good?
 
  • #4
The ideal gas law is most accurate for monoatomic gases at high temperatures and low pressures. Although, I assume, depending on the necessary accuracy of the measurements and the specifics of the experiment, one could still use the Ideal Gas Law for temperatures near condensation.
 

FAQ: Ideal Gas Assumptions: Can it Turn into a Liquid?

What are the ideal gas assumptions?

The ideal gas assumptions are a set of simplifying assumptions about the behavior of gases that allow for easier calculations and predictions. These assumptions include: (1) particles have no volume, (2) particles do not interact with each other, (3) particles are in constant, random motion, (4) collisions between particles are elastic, and (5) the average kinetic energy of particles is directly proportional to temperature.

Can an ideal gas turn into a liquid?

No, according to the ideal gas law (PV = nRT), an ideal gas can only exist in a gaseous state. As pressure and/or temperature decrease, the gas may approach a liquid state, but it will never truly become a liquid. This is because, at the molecular level, an ideal gas does not have the necessary intermolecular forces to form a liquid.

What happens to an ideal gas when it is compressed?

When an ideal gas is compressed, its volume decreases and its pressure increases. This is because, according to Boyle's Law, the pressure of an ideal gas is inversely proportional to its volume at a constant temperature. Therefore, as the volume decreases, the pressure must increase to maintain a constant temperature.

What is the difference between an ideal gas and a real gas?

An ideal gas is a theoretical concept that follows the ideal gas law and its assumptions. A real gas, on the other hand, deviates from these assumptions and may exhibit different behaviors, such as having non-zero volume or experiencing intermolecular interactions. Real gases also have a more complex equation of state, such as the van der Waals equation, which accounts for these deviations.

How do the ideal gas assumptions affect real-world situations?

The ideal gas assumptions are a simplification of the behavior of real gases and are not applicable in all situations. In real-world scenarios, gases may deviate from these assumptions and exhibit different behaviors, such as showing non-ideal gas behavior or undergoing phase changes. Therefore, the ideal gas assumptions should be used with caution and consideration of the specific conditions and properties of the gas being studied.

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