A balloon with a volume of 2.0 L at 25°C is placed
in a hot room at 35°C. The pressure on the
balloon is constant at 1.0 atm.
How does the volume of the balloon change after
moving it to the hot room?
It increases because of the Boyle's law. When the balloon is moved into the hot room inside the molecule is moving faster and hitting the balloon more, in result the size increase.