Question
Large helium-filled balloons are used to lift scientific equipment to high altitudes. (a) What is the pressure inside such a balloon if it starts out at sea level with a temperature of $10.0^circ \textrm{C}$ and rises to an altitude where its volume is twenty times the original volume and its temperature is $-50.0^\circ \textrm{C}$? (b) What is the gauge pressure? (Assume atmospheric pressure is constant.)
1. $0.0394 \textrm{ atm}$
2. $-0.961 \textrm{ atm}$
Solution Video