7. Gases

The Ideal Gas Law Applications

Application of the Ideal Gas Law

Applications of the Ideal Gas Law

A 1:1 mixture of helium (red) and argon (blue) at 300 K is
portrayed below on the left. Draw the same mixture when
the temperature is lowered to 150 K.

Consider the apparatus shown in the following drawing.
(a) When the valve between the two containers is opened
and the gases are allowed to mix, how does the volume occupied
by the N2 gas change?
<img src="https://lightcat-files.s3.amazonaws.com/problem_images/612746fcfa99aa8c-1664295939458.jpg" alt="" />

Ideal Gas Law:  Applications of the Ideal Gas Law

Understanding the Ideal Gas Law Applications

The relationship between the partial pressure of a gas (P) and the number of moles of that gas (n) is best represented by which of the following graphs? <img class="fr-dib"src="https://static.studychannel.pearsonprd.tech/courses/general-chemistry/thumbnails/images/4028ff2f"style="width:655px;">

The Ideal Gas Law Applications Example 1

Ideal Gas Law

Which gas sample has the greatest pressure? Assume that all the
samples are at the same temperature. Explain.
<img src="https://lightcat-files.s3.amazonaws.com/problem_images/79e7b0b7b2ccb3d8-1659954071880.jpg" alt="" />

Imagine that you have two identical flasks, one containing 
chlorine gas and the other containing argon at the same 
temperature and pressure. How can you tell which is which 
without opening them?

(a) What is the primary basis for the division of the atmosphere into different regions?

CHEM 101 - Applying the Ideal Gas Law

Applications of the Ideal Gas Law:  Molar Volume

Consider the sample of gas depicted here. What would the
drawing look like if the volume and temperature remained
constant while you removed enough of the gas to decrease
the pressure by a factor of 2?
(a) It would contain the same number of molecules.
(b) It would contain half as many molecules.
(c) It would contain twice as many molecules.
(d) There is insufficient data to say.<img src="https://lightcat-files.s3.amazonaws.com/problem_images/c700c3f03cbcecbf-1660665305671.jpg" alt="" />

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Partial Pressure

Partial Pressure (PGas) is the pressure exerted by an individual gas within a container.

Velocity Distributions

Velocity Distributions represent probability distributions for a gas when examining their molar mass and temperature.

Mole Fraction

Mole Fraction (X) represents the mole component by total moles.&nbsp;

Mole Fraction -

The Ideal Gas Law Derivations

The&nbsp;Ideal Gas Law Derivations are a convenient way to solve gas calculations involving 2 sets of the same variables.&nbsp;

Root Mean Square Speed

Root Mean Square Speed&nbsp;allows for the determination of the velocity of 1 type of gas molecule.

The Ideal Gas Law: Density

Under certain conditions of pressure and temperature, the Ideal Gas Law can determine the density&nbsp;of a gas.&nbsp;

Effusion

Effusion is the escaping of gas molecules or atoms through a pinhole.&nbsp;

Kinetic Energy of Gases

Kinetic Energy is the energy an object possesses due to its motion.

Gas Stoichiometry

Gas Stoichiometry involves chemical reactions that contain gases.

The Ideal Gas Law

The Ideal Gas Law formula relates the behavior of gases under varying conditions of pressure, volume, moles and temperature.

Chemistry Gas Laws: Combined Gas Law

The Combined Gas Law&nbsp;is created from “combining” Boyle’s Law, Charles’ Law, and Gay–Lussac’s Law.

Pressure Units

Pressure is the force that is exerted within a given volume of space.&nbsp;

Kinetic Molecular Theory

A gas is seen as a collection of molecules or individual atoms that are in constant motion. The Kinetic-Molecular Theory tries to use data of real gases to predict how an ideal gas would behave if they existed.&nbsp;&nbsp;

Standard Temperature and Pressure

In order to accurately study the effect that changes in pressure, temperature and moles have on volume, chemists will often run their experiments under Standard Temperature and Pressure.&nbsp;

The Ideal Gas Law Applications establish both the direct and inverse relationships between the Ideal Gas Law variables.

Maxwell-Boltzmann Distribution

The Maxwell-Boltzmann Distribution is a probability distribution curve that describes the speed of a gas at a specific temperature.

Chemistry Gas Laws

Chemistry Gas Laws&nbsp;are laws that relate together the pressure, volume and temperature of a gas.

The Ideal Gas Law: Molar Mass

The Ideal Gas Law can be further extended to find the molar mass of a gas.&nbsp;

Van der Waals Equation

The&nbsp;Van der Waals Equation is used when dealing with real, non-ideal gases.&nbsp;

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