If a balloon is taken outside on a very cold day, what will occur?

Question

a
Gas will flow into the balloon.
b
The pressure inside the balloon will increase.

c
The volume of the balloon will increase.
d
The volume of the balloon will decrease.

Answer 1

When a balloon is taken outside on a very cold day, the temperature of the gas inside the balloon decreases. According to the gas laws (specifically, Charles's Law), when the temperature of a gas decreases, its volume also decreases if the pressure remains constant.

Therefore, the correct answer is:

d. The volume of the balloon will decrease.