ChemBench

Charles's Law Calculator

Heat it up, it expands.

Volume and temperature rise together

At constant pressure, a gas's volume is directly proportional to its absolute temperature (in Kelvin) — double the temperature and the volume doubles too.

Why a hot air balloon rises

Heating the air inside a balloon expands its volume (Charles's Law in action), making that air less dense than the surrounding cooler air and generating buoyant lift.

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ChemBench

Charles's Law Calculator

Heat it up, it expands.

Initial volume (L)

Initial temperature (K)

Final temperature (K)

Final volume

2.333 L

V₁/T₁ = V₂/T₂

What you entered

Initial volume (L): 2Initial temperature (K): 300Final temperature (K): 350

1
V₂ = V₁T₂ ÷ T₁
(2 × 350) ÷ 300= 2.3333

Result

Final volume: 2.333 L

Heating to 350K expands the gas to 2.333L.

Volume and temperature rise together

At constant pressure, a gas's volume is directly proportional to its absolute temperature (in Kelvin) — double the temperature and the volume doubles too.

Why a hot air balloon rises

Heating the air inside a balloon expands its volume (Charles's Law in action), making that air less dense than the surrounding cooler air and generating buoyant lift.