A Helium filled weather balloon, when released, has a volume of 10.0 L at 27°C and a pressure of 663 mmHg. What Volume, in liters, will the balloon occupy at an altitude where the presure is 96 mmHg and the temperature is 30°C?
The answer must be 56 L He, But I dont know how it happened, I already used the formula finding V2, Do I need to rederived the formula finding V2?