A weather balloon with a volume of 301 L is launched at 20.0°C
at sea level, where the atmospheric pressure is 1.00 atm. The
balloon rises to an altitude of 2.00 × 104 m, where atmospheric
pressure is 63.0 mmHg and the temperature is 210.0 K. What is the
volume of the balloon at 2.00 × 104 m?