Helium balloon w/ volume 4kL, pressure of 100kPa, temp of 20celsius. what its volume when 30km above earth?

Question

assuming balloon expands, contracts w/o resistance

for chem hmwk

never learnt this

appreciate ur help

thanks!!

Answer 1

You'd have to use the Combined Gas Law:

P1V1/T1 = P2V2/T2

P=pressure

V=volume

T=temperature in Kelvin

The one thing I'm stuck on is what the pressure and temperature would be 30 km above the Earth--that information would be your P2 and T2. There isn't anything on that in your materials?