Weather balloon radius at different pressure and temperature

[Jake4]

Homework Statement

A weather balloon is designed to expand to a maximum radius of 26m hen in flight at its working altitude where the air pressure is .026 atm and the temperature is 229K

If the balloon is filled at atmospheric pressure and 434K, what is its radius at lift off?

Homework Equations

The Attempt at a Solution

We learned linear expansion in class, and all about pressures and changes in pressure. However I don't think we ever went over anything of this sort.

Thanks for the help guys!

exam tomorrow!

 

[Jake4]

no one? :(

Even just help with the relevant equations?

 

[SteamKing]

It seems you need a gas equation which relates P, V, and T. Seen any good ones lately?

 

[Disconnected]

It seems you need a gas equation which relates P, V, and T. Seen any good ones lately?

Too funny!