Thermodynamics: Ideal gas model

Thread starter koddball
Start date Jan 25, 2021
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Gas Ideal gas Model Physic Thermodynamics

In summary, the ideal gas law is a mathematical equation that relates the pressure, volume, and temperature of an ideal gas. An ideal gas is a theoretical model that follows certain assumptions, making it easier to study. The ideal gas law states that as temperature increases, the volume and pressure of an ideal gas will also increase. However, the ideal gas model has limitations and may not accurately predict the behavior of real gases at high pressures or low temperatures. The ideal gas law is used in various real-world applications, such as in engineering, physics, chemistry, and weather forecasting.

Jan 25, 2021

koddball

Homework Statement: I have some confusion about the ideal gas model. It would be helpful if you can provide an explanation. Thank you!

Relevant Equations: N/A

Do particles have air in between them in the ideal gas model?

I think the answer is 'no, but I am not quite sure about the explanation. Is it because in an ideal gas model, the volume of the particles is negligible? Thank you.

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Jan 25, 2021

Chestermiller

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Do you really mean air, or do you just mean empty space?

1. What is the ideal gas model in thermodynamics?

The ideal gas model is a theoretical model used to describe the behavior of gases at low pressures and high temperatures. It assumes that gas particles have no volume and do not interact with each other, and follows the ideal gas law, PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is temperature.

2. What are the assumptions of the ideal gas model?

The ideal gas model assumes that gas particles have no volume and do not interact with each other, meaning there are no intermolecular forces between particles. It also assumes that the gas is in a state of thermal equilibrium, meaning the temperature is the same throughout the gas. Additionally, it assumes that the gas is in a closed system with no external forces acting on it.

3. How does the ideal gas model relate to the ideal gas law?

The ideal gas model is based on the ideal gas law, which states that the pressure, volume, and temperature of an ideal gas are directly proportional to each other. This means that as one variable increases, the others will also increase in a predictable manner. The ideal gas model uses this relationship to describe the behavior of gases under specific conditions.

4. What are the limitations of the ideal gas model?

The ideal gas model is limited in its applicability to real-world gases. It assumes that gas particles have no volume and do not interact with each other, which is not the case for most gases at high pressures and low temperatures. It also does not take into account the effects of intermolecular forces and the non-ideal behavior of real gases.

5. How is the ideal gas model used in thermodynamic calculations?

The ideal gas model is used in thermodynamic calculations to simplify the analysis of gases in various systems. It allows scientists to make predictions about the behavior of gases under specific conditions, and is often used in conjunction with other thermodynamic models to provide a more accurate representation of real-world systems.