Charles’s Law Calculator
Gas Parameters
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Initial State
Final State
Calculation Results
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Volume Change (ΔV)
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Expansion Ratio
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Temp Change (ΔT)
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Step-by-Step Solution
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Thermal Simulator
V: — | T: —
Scientific Concepts
Charles’s Law, discovered by Jacques Charles in the 1780s, is an experimental gas law that describes how gases tend to expand when heated. A modern statement of Charles’s Law is:
When the pressure on a sample of a dry gas is held constant, the Kelvin temperature and the volume will be directly related.
Why Use Kelvin?
Calculations involving gas laws must use the Kelvin (K) scale. Absolute zero (0 K) represents the theoretical cessation of all molecular motion. If you use Celsius or Fahrenheit in the formula (V₁/T₁ = V₂/T₂), you might divide by zero or calculate a negative volume, which is physically impossible.