Charles's Law (V₁/T₁ = V₂/T₂)
Constant P: volume scales linearly with absolute temperature.
Result
V₂
6.8305
5 × 373.15 / 273.15 = 6.8305.
- V₁5
- T₁273.15 K (0.00 °C)
- T₂373.15 K (100.00 °C)
- V₂6.830496
- V₁/T₁0.018305
- V₂/T₂0.018305
Step-by-step
- V₁/T₁ = V₂/T₂ at constant P, n.
- V₂ = V₁ × T₂/T₁ = 5 × 373.15/273.15 = 6.8305.
How to use this calculator
- Enter V₁, T₁, T₂.
- Read V₂.
About this calculator
Charles's Law (1787): at constant pressure, gas volume scales linearly with absolute temperature. Heating doubles V if you double K (not °C!). Hot air balloons rise because heated air expands → less dense than surrounding air. Refrigerators exploit the opposite: cold compressed gas absorbs heat as it expands.
Frequently asked
Doubles when you double K (proportional). Celsius doesn't work — 200°C / 100°C ≠ 2× the volume effect (need 473 K / 373 K = 1.27× ratio).
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