Using the combined gas law:
A weather balloon is inflated to a volume of 27.6 L at a pressure of 743 mmHg and a temperature of 28.1 oC. The balloon rises in the atmosphere to an altitude where the pressure is 385 mmHg and the temperature is -14.9 oC.
Assuming the balloon can freely expand, calculate the volume of the balloon at this altitude.
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What scientific concept do you need to know in order to solve this problem?
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