# A weather balloon with a volume of 3.40774 L is released from Earth’s surface at sea level. ?

A weather balloon with a volume of 3.40774 L

is released from Earth’s surface at sea level.

What volume will the balloon occupy at an

altitude of 20.0 km, where the air pressure is

10 kPa?

Answer in units of L.

### 1 Answer

Relevance

- Roger the MoleLv 72 months ago
Supposing constant temperature (although that's a very unrealistic assumption):

(3.40774 L) x (101.325 kPa / 10 kPa) = 34.528 L = 35 L

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