A meteorological ballon contains 300L of He at 25ºC and 750 mm Hg. What volume {in L} would it occupy at -10ºC and 10 psi?

Question

Process and answer is needed!

Answer 1

You can use CGL: V₂ = V₁(T₂/T₁)(P₁/P₂) V is proportional to T (Charles) and V is inverse with P (Boyles)

The volume units are set, but you must use absolute units for Temperature (Kelvin = C + 273.15) and you must use the same units for P, so convert using 14.7 psi = 760 mmHg). Then plug in the values for case 1 and case 2 in order to obtain V₂ in liters.