A partially inflated balloon contains of helium at and pressure

PHYSICS · Subjective · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

A partially inflated balloon contains

500\text{ m}^3

of helium at

27^\circ\text{C}

and

1\text{ atm}

pressure. What is the volume of helium at an altitude of

18{,}000\text{ ft}

, where the pressure is

0.5\text{ atm}

and the temperature is

-3^\circ\text{C}