Gas Behavior + Gas Laws

Chemistry

Gas particles have high kinetic energy because

they move rapidly and randomly in straight lines

Spacing between gas particles are

far apart

Units that are used to measure pressure

atm, psi, torr, mmHg, pascal, Kpascal, bar

What instrument is used to measure atmospheric pressure?

Barometer

Whats the formula to convert degrees Celsius to Kelvin?

+273 to C

Whats the formula to convert Kelvin to degrees Celsius?

-273 from K

Absolute Zero Definition

The lowest theoretical temperature possible (Theoretical Value)

What are the degrees Celsius and Kelvin temperatures associated with Absolute Zero?

0Kelvin = -273 Degrees Celsius

If # of particle collisions increased, what happens to gas pressure?

Would Increase due to more collisions and particles

If the force of particle collisions decreased, what happens to gas pressure?

Would decrease due to the particles hitting the container walls less forcefully

If volume and temp are constant, as the # of gas particles decreases, the pressure…

Would decrease due to lower collisions

If pressure and # of gas particles are constant, and the temp decreases, the volume…

Would decrease due because less temp leads to particles moving slower and less kinetic energy

Definition of Boyle’s Law

When volume goes down, pressure goes up. When volume goes up, pressure goes down. Temperature stays the same.

Formula for Boyle’s Law

Definition of Charles Law

When temperature goes up, volume goes up. When temperature goes down, volume goes down. Pressure stays the same. Use Kelvin.

Formula for Charles Law

Definition of Gay Lussac’s Law

When temperature goes up, pressure goes up. When temperature goes down, pressure goes down. Volume stays the same. Use Kelvin.

Formula for Gay Lussac’s Law

Definition of Combined Gas Law

Used when pressure, volume, and temperature all change.

Formula for Combined Gas Law

Definition of Ideal Gas Law

Shows the relationship between Pressure, Volume, Temperature, and Moles for a gas.

Formula for Ideal Gas Law

ONLY use Kelvin for…

Gas Law temp calculations

Definition Of Avogrados Law

Volume and the amount of gas (moles) have a direct relationship when temperature and pressure stay constant, meaning more gas = more volume.

Formula for Avogrados Law