If a mixture of different gases is heated, it rises to the top of its container. Which statement best explains this result?(1 point)

Question

Responses

Heated gases have lower kinetic energy and lower density.
Heated gases have lower kinetic energy and lower density.

Heated gases have lower kinetic energy and higher density.
Heated gases have lower kinetic energy and higher density.

Heated gases have higher kinetic energy and decreased density.
Heated gases have higher kinetic energy and decreased density.

Heated gases have higher kinetic energy and higher density.

Answer 1

The statement that best explains why a mixture of different gases rises to the top of its container when heated is:

Heated gases have higher kinetic energy and decreased density.

Heating a gas increases its kinetic energy, causing the gas particles to move more rapidly and spread apart, which leads to a decrease in density. As the density of the heated gas is lower than that of the cooler surrounding gas, it rises.