Gas laws

Front

Why is a helium-filled balloon lighter than an air-filled balloon?

Back

low density

Front

What is pressure?

Back

defined as the force per unit area

Front

What is observed about the volume of a fixed amount of gas in Ethan's balloon at constant temperature?

Back

The volume is inversely proportional to its pressure.

Front

Avogadro's law in Scarlett, Jackson, and Evelyn's experiment.

Back

Equal amounts of gases will occupy the same volume at constant temperature and pressure.

Front

During a science experiment, Mia, David, and Benjamin observed that when they heated a fixed amount of gas at constant pressure, its volume changed. This observation is best explained by which of the following laws?

• Equal amounts of gases occupy the same volume at constant temperature and pressure.
• The volume of a fixed amount of gas is inversely proportional to its pressure at constant temperature.
• The volume of a fixed amount of gas is directly proportional to its temperature in Kelvin at constant pressure.
• The total pressure of a mixture of gases is the simple sum of the partial pressure of all of the gaseous compounds.
• The rates of effusion of gases are inversely proportional to the square roots of their molar masses.

Back

The volume of a fixed amount of gas is directly proportional to its temperature in Kelvin at constant pressure.

Front

Temperature at which gas volume changes from 3.62 L at 294.8 K to 3.42 L (constant pressure).

Back

278.5K

Front

Whose balloon is the largest? (Gases: H₂, He, Ne, O₂)

Back

Benjamin's (H₂)

Front

Back