The temperature outside is 33 ∘C , and the air pressure is 0.700 atm . Your neighbor, who released the balloon, tells you that he filled it with 4.20 moles of gas.

Question

What is the volume of gas inside this balloon?

Answer 1

With the ideal gas law PV = nRT, V = (4.20 mol) (0.08206 L atm/mol K) (33 + 273K) / (0.700 atm) = 151 L.