Question

An expandable balloon contains 3.50 dm³ of helium at 101. kPa and 23.0^oC. What volume will the balloon occupy when the pressure drops to 85.0 kPa and the temperature is 10.0^oC?

Answer 1

$\frac{P_1×V_1}{T_1}=\frac{P_2×V_2}{T_2}$

$\frac{101×3.5}{296}=\frac{85×V_2}{283}$

$V_2=3.98dm^3$