A gas in a balloon at constant pressure has a volume of 120.0 mL at - 123°C. What is the volume at 27.0°C?

Question

Chemistry

Jason Velazquez

14 March, 21:48

A gas in a balloon at constant pressure has a volume of 120.0 mL at - 123°C. What is the volume at 27.0°C?

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Fiona Pitts · Answer 1

The law that can be applied here is Charle’s Law which states that for a fixed mass of gas and at constant pressure, the volume is directly proportional with the absolute temperature. It is represented by the equation of V1/T1=V2/T2. Since there is no negative volume, we will change the temperature into Kelvin, (-123+273=150K) and (70+273=300K). plugging in the values, V2 = (300K) (120mL/150K) we get a volume of 240mL.