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

Question

A.
The volume of the balloon will decrease.

B.
Gas will flow into the balloon.

C.
The volume of the balloon will increase.

D.
The pressure inside the balloon will increase.

Answer 1

A. The volume of the balloon will decrease.

When a balloon is taken outside on a very cold day, the temperature of the gas inside the balloon decreases. According to Charles's Law, if the temperature of a gas decreases while keeping the pressure constant, the volume of the gas will also decrease. Therefore, the volume of the balloon will decrease in cold temperatures.