Question

You have a sealed, flexible balloon filled with argon gas. Theatmospheric pressure is 1.00 atm
and the temperature is 2?. Assume that air has a mole fraction ofnitrogen of 0.790 (i.e., 79
mol-% N2 in air), the rest being oxygen.
(a) Explain why the balloon would float when heated. Make sure todiscuss which factors
change and which remain constant, and why this matters. Becomplete.
(b) Above what temperature would you heat the balloon so that itwould float?