
Concept explainers
Interpretation:
Whether Charles’s law can be used to determine absolute zero has to be explained.
Concept Introduction:
Charles’s law: The volume of a given amount of gas is proportional to its temperature (in K) of the gas at constant pressure.
The relationship between volume of a gas and temperature is expressed as-

Answer to Problem 12A
If the lines in volume vs. temperature in Kelvin graph extrapolate to zero volume at the same temperature which is -273 °C. This temperature -273 °C is the lowest possible
Explanation of Solution
Charles’s law: The volume of a given amount of gas is proportional to its temperature (in K) of the gas at constant pressure.
The relationship between volume of a gas and temperature is expressed as-
If the lines in volume vs. temperature in Kelvin graph extrapolate to zero volume at the same temperature which is -273 °C. This temperature -273 °C is the lowest possible thermodynamic temperature when when the volume of a gas is zero. Therefore, this temperature is defined as absolute zero on the Kelvin scale which is derived from the Charles’s law.
Chapter 13 Solutions
World of Chemistry
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