Chemistry Final - Hot Air Balloon

Which laws are applied to the chemistry of hot air balloons?

• Charles' Law

• Ideal Gas Law

• Newton's Law

• Law of Conservation of Mass

What happens to the air when it is heated up inside of the balloon?

• Less dense

• More dense

• Raises pressure

• Lowers pressure

When the propane is burned in the presence of oxygen to produce water vapor and carbon dioxide, is it a chemical or physical change?

• Chemical change

• Physical change

How does the propane burner work to heat inside the balloon?

• The propane is monitored and only flows to the burner in a gas form.

• The propane burner does not heat the inside of the balloon.

• The propane is highly compressed in the cylinders and flows to the burner in a liquid form.

The propane gas goes through a chemical reaction that produces heat, which is then transferred to the air inside the balloon. 

A buoyant force is created, which ultimately leads to the rise of the balloon.

• True

• False

What is the relationship between temperature, density, and volume in the ideal gas law?

• As the temperature decreases, the volume increases, which decreases the density of the air.

• As the temperature increases, the volume decreases, which increases the density of the air.

• As the temperature increases, the volume increases, which decreases the density of the air.

• As the temperature decreases, the volume decreases, which decreases the density of the air.

This is the type of reaction that occurs within a hot air balloon.

• Decomposition

• Combustion

• Synthesis

• Redox

These are the products of the reaction that occurs in the hot air balloon.

• Water Vapor and Carbon Dioxide

• Oxygen and methanol

• Carbon monoxide and Sodium

• Nitrogen and Hydrogen

Is when heat causes gases to expand and become lighter a chemical or physical change?

• Chemical change

• Physical change

What happens when the air in the balloon cools down?

• The balloon goes up.

• The balloon goes left.

• The balloon goes right.

• The balloon goes down.