Investigation 9 - Enriched Chem Review - Gases

Front

What is the formula to convert Celsius to Kelvin?

Back

K = °C + 273.15

Front

What is the relationship between pressure and volume of a gas at constant temperature?

Back

This is described by Boyle's Law: P1V1 = P2V2.

Front

What is the relationship between temperature and volume of a gas at constant pressure?

Back

This is described by Charles's Law: V1/T1 = V2/T2.

Front

Define 'volatile' in the context of chemistry.

Back

A liquid that vaporizes readily.

Front

What is the ideal gas law equation?

Back

PV = nRT, where P = pressure, V = volume, n = number of moles, R = ideal gas constant, T = temperature.

Front

How do you calculate the pressure of a gas if the volume and temperature are known?

Back

Use the ideal gas law: P = nRT/V.

Front

What happens to the pressure of a gas if the volume decreases while temperature remains constant?

Back

The pressure increases (Boyle's Law).

Front

What is the significance of the absolute zero temperature?

Back

It is the theoretical temperature at which a substance has minimum thermal energy, 0 K or -273.15 °C.

Front

How does temperature affect the kinetic energy of gas particles?

Back

As temperature increases, the kinetic energy of gas particles increases.

Front

What is the definition of pressure in the context of gases?

Back

Pressure is the force exerted by gas particles colliding with the walls of a container per unit area.