Question

A balloon has a volume of 3.6 L

L at a pressure of 1.5 atm

 and a temperature of 30∘C. If the balloon is submerged in water to a depth where the pressure is 4.2 atm

 and the temperature is 15∘C, what is its volume (assume that any changes in pressure caused by the skin of the balloon are negligible

Answer 1

$T_2=\frac {1.5×3.6×15}{30×4.2}=1.07L$