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Input the values of volume and temperature and click **calculate** to find the solution through **v1/t1=v2/t2** formula in the Charles law calculator.

Charles observed that the ratio of volume and temperature remains nearly constant which can be given as:

Gas Equation: V_{i}/T_{i} = V_{f}/T_{f} or V_{f}/V_{i} = T_{f}/T_{i} or V_{i}T_{f} = V_{f}T_{i}

**where,**

V_{i} = Initial Volume

T_{i} = Initial Temperature

V_{f} = Final Volume

T_{f} = Final Temperature

This Charles law calculator can find the missing quantities in the Charles law of ideal gas. The formula for each quantity appears on the side of the calculator.

Let’s learn more about Charles’s law and its formula.

Charles's Law is an ideal gas law where at constant pressure; the volume of an ideal gas is directly proportional to its absolute temperature.

Jacques Charles studied the relationship between volume (V) and temperature (T) of a confined gas at constant pressure and saw how gas tends to increase in volume when heated.

It was first published by French natural philosopher Joseph Louis Gay-Lussac in 1802, although he credited the discovery to unpublished work from the 1780s by Jacques Charles.

**Example****:**

Calculate the Final Temperature (T_{f}) by using the Charles’ Law Calculator.

Initial Volume (V_{i}) = 25 L

Initial Temperature (T_{i}) = 5 K

Final Volume (V_{f}) = 15 L

**Solution****:**

**Apply Formula:**

Gas Equation: V_{i}/T_{i} = V_{f}/T_{f} or V_{f}/V_{i} = T_{f}/T_{i} or V_{i}T_{f} = V_{f}T_{i}

T_{f} = [(15) * (5)] / 25

**Final Temperature (T**_{f}**) = 3 K**