Question

0. When a flask is sealed with a balloon and the flask is heated up, the balloon inflates. Why?

a.
The gas particles slow down and therefore take up less space
b. The gas particles move faster and therefore hit the walls of the flask and balloon
more frequently, pushing the balloon outward
The gas particles move faster and increase the pressure inside of the flask and
balloon
d. The gas particles gain energy and increase in size

Answer 1

The gas particles move faster and increase the pressure inside of the flask and

Step-by-step explanation:

Heat energizes gas molecules, and gas with a lot of energy increases the pressure in a contained area. This pressure goes into the balloon and expands its volume. B is partially correct, but it doesn't explain how hitting the walls of the flask and balloon cause the balloon to expand.