# The temperature inside my refrigerator is 3.18 Celsius. If I place a balloon in my fridge that initially has a temperature of 22.2 degrees Celsius and a volume of 0.577 L, what will be the volume of the balloon when it is fully cooled in my refrigerator?

From gas law $P V = n R T$ and ${V}_{1} / {T}_{1} = {V}_{2} / {T}_{2}$, therefore ${V}_{2} = {V}_{1} \cdot {T}_{2} / {T}_{1}$.
Hence ${V}_{2} = 0.577 \cdot \frac{276.33}{295.35} = 0.540$ L ,where temperatures were transformed into Kelvin scale.