The above formula is the Combined Gas Law and is used when Pressure, Volume and Temperature change.
Remembering that
- Boyle’s Law is applicable only when Pressure and Volume change,
- Charles’ Law applies only when Temperature and Volume change and
- Gay-Lussac’s Law applies only when pressure and temperature change.
As a practice example, 8 liters of a gas has a pressure of 760 torr and a temperature of 600 Degrees Kelvin.
Calculate the temperature when the volume is 2 liters and the pressure is 1520 torr.
Your answer should equal 300 Degrees Kelvin.
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