7. Gases

Chemistry Gas Laws: Combined Gas Law

Combined Gas Law - Pressure, Volume and Temperature - Straight Science

Assume that you have a sample of gas in a cylinder with a movable piston, as shown in the following drawing:
<img src="https://lightcat-files.s3.amazonaws.com/problem_images/5843cd494d51e473-1669641890984.jpg" alt="" /> 
Redraw the apparatus to show what the sample will look like after 
(c) the temperature is decreased from 300 K to 200 K and the pressure is decreased from 3 atm to 2 atm.

Assume that you have a cylinder with a movable piston. What would happen to the gas volume of the cylinder if you were to do the following?
(d) Double the Kelvin temperature and double the pressure

An automobile tire has a maximum rating of 38.0 psi (gauge
pressure). The tire is inflated (while cold) to a volume of 11.8 L
and a gauge pressure of 36.0 psi at a temperature of 12.0 °C. On a
hot day, the tire warms to 65.0 °C, and its volume expands to
12.2 L. Does the pressure in the tire exceed its maximum rating?
(Note: The gauge pressure is the difference between the total pressure and atmospheric pressure. In this case, assume that atmospheric
pressure is 14.7 psi.)

Chemistry Gas Laws: Combined Gas Law Example 1

Many gases are shipped in high-pressure containers. Consider
a steel tank whose volume is 210.0 L that contains O2
gas at a pressure of 16,500 kPa at 23 °C. (d) What would be the pressure of the gas, in kPa, if it were transferred to a container at 24 °C whose volume is 55.0 L?

Pressure, Volume and Temperature Relationships - Chemistry Tutorial

Assume that you have a gas cylinder with a movable piston filled with oxygen. The initial conditions are T = 250 K, n = 0.140 mol O2, and P = 1.00 atm. If the initial volume is 1.0 L, what is the volume when the temperature is increased
to 400 K and the pressure is decreased to 0.75 atm? (LO 10.3)

(a) 2.1 L (b) 1.2 L
(c) 0.83 L (d) 1.6 L

Gases: Combined Gas Law

Chemistry 7.4d Combined Gas Law

Chemistry Regents: Combined Gas Law

Assume that you have a cylinder with a movable piston. What would happen to the gas pressure inside the cylinder if you were to do the following?
(d) Halve the Kelvin temperature and triple the volume

The Combined Gas Law - Explained

Combined Gas Law

This picture represents a sample of gas at a pressure of 1 atm, a
volume of 1 L, and a temperature of 25 °C. Draw a similar
picture showing what would happen to the sample if the volume
were reduced to 0.5 L and the temperature were increased to 250 °C. What would happen to the pressure?
<img src="https://lightcat-files.s3.amazonaws.com/problem_images/d0754ae9b1b6b19f-1659950806298.jpg" alt="" />

A weather balloon is inflated to a volume of 28.5 L at a pressure
of 748 mmHg and a temperature of 28.0 °C. The balloon rises in
the atmosphere to an altitude of approximately 25,000 ft, where
the pressure is 385 mmHg and the temperature is -15.0 °C. Assuming
the balloon can freely expand, calculate the volume of
the balloon at this altitude.

A 4.30 L gas has a pressure of 7.0 atm when the temperature is 60.0 ºC. What will be the temperature of the gas mixture if the volume and pressure are decreased to 2.45 L and 403.0 kPa respectively?

A quantity of N2 gas originally held at 531.96 kPa pressure
in a 1.00-L container at 26 °C is transferred to a 12.5-L container
at 20 °C. A quantity of O2 gas originally at 531.96 kPa
and 26 °C in a 5.00-L container is transferred to this same
container. What is the total pressure in the new container?

Chlorine is widely used to purify municipal water supplies
and to treat swimming pool waters. Suppose that the volume
of a particular sample of Cl2 gas is 8.70 L at 119.3 kPa
and 24 °C. (c) At what temperature
will the volume be 15.00 L if the pressure is 116.8 kPa

You have a gas at 25 C confined to a cylinder with a movable
piston. Which of the following actions would double
the gas pressure?
(a) Lifting up on the piston to double the volume while keeping the temperature constant
(b) Heating the gas so that its temperature rises from 25 C to 50 C, while keeping the volume constant 
(c) Pushing down on the piston to halve the volume while keeping the temperature constant.

A sealed container with a movable piston contains a gas with a pressure of 1380 torr, a volume of 820 mL and a temperature of 31°C. What would the volume be if the new pressure is now 2.83 atm, while the temperature decreased to 25°C?

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[BOOK CHEM] Clutch Version

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.

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

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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