# A helium balloon with an internal pressure of 1.00 atm and a volume of 4.50 L at 20.0°C is released. What volume will the balloon occupy at an altitude where the pressure is 0.600 atm and the temperature is -20.0° C?

##### 1 Answer

Dec 26, 2016

#### Answer:

6.47 L

#### Explanation:

We can use the Ideal gas equation PV = nRT .....(a)

Plugging in the values;

(1 atm x 4.50 L ) / 293 K = 0.6 atm x

(4.50 atm L x 253 K ) / ( 0.6 atm x 293 K) =