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# Combined Gas Law (T)

vCalc.Combined Gas Law (T)

The **Combined Gas Law for Temperature** calculator computes the temperature of a gas using the combined gas law that relates the product of pressure and volume to temperature of a gas.

**INSTRUCTIONS:** Choose units and enter the following:

- k - proportionality constant for the gas
- V - volume of the gas
- P - pressure of the gas

**Gas Temperature (T):** The calculator returns the temperature in degrees Kelvin. However, this can be automatically converted to compatible units via the pull-down menu.

#### The Math / Science

The combined gas law is mathematically expressed as: (P•V) / T = k. The formula for the temperature of a gas based on the combined gas law is:

T = V•P/k

where:

- T = gas temperature
- P = gas pressure
- V = gas volume
- k = proportionality constant

#### Combined Gas Law Calculators:

**Combine Gas Law (Pressure)**- this solves for the pressure of the gas if you know volume, temperature and the combined gas constant for the specific gas.**Combine Gas Law (Volume)**- this solves for the volume of the gas if you know pressure, temperature and the combined gas constant for the specific gas.**Combine Gas Law (Temperature)**- this solves for the temperature of the gas if you know pressure, volume and the combined gas constant for the specific gas.**Combine Gas Law (k)**- this solves for the gas constant of proportionality of the gas if you know pressure, volume and the temperature for the specific gas.

## NOTES

The combined gas law is a gas law which is based on the combination of Charles's law, Boyle's law, and Gay-Lussac's law. The combined gas law states the ratio between the pressure-volume product and the temperature of a system remains constant.

This constant ratio can be used when comparing different conditions using the same substances because the value of k is characteristic of the gaseous substance..

These three gas laws each relate one thermodynamic variable to another mathematically while holding everything else constant. Charles's Law holds pressure constant. Boyle's Law holds temperature constant. Gay-Lussac's Law holds volume constant. The inter-dependence of these variables of pressure, temperature and volume is shown in the combined gas law.

**Combined Gas Law (T)**, is used in 1 calculator.

**Calculators**