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Ideal Gas Molar Volume Calculator

Use this online ideal gas molar volume calculator with labeled inputs and a worked example. Vm = RT/P.

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molar gas volume calculator online

Use ideal gas molar volume calculator online with the chemical quantities shown below. No implicit STP definition; explicitly supply temperature and absolute pressure.

How to use it

Enter Absolute temperature (K). Set Absolute pressure (Pa). Select Calculate, check the result units, then copy or download the JSON result.

Options and example settings

OptionChoices / valueExample default
Absolute temperature (K)Main input. Decimal or scientific notation. Positive values only. 273.15
Absolute pressure (Pa)Option. Decimal or scientific notation. Positive values only. 100000

Calculation method

Vm = RT/P

Worked examples

Worked case for ideal gas molar volume calculator. No implicit STP definition; explicitly supply temperature and absolute pressure.

Ideal Gas Molar Volume Calculator — example with explicit inputs

Settings: Absolute pressure (Pa): 100000

Input:

273.15

Expected result for the example input and options:

Output:

{
  "molar_volume_L_mol": 22.71095464148557
}

Limitations and common mistakes

  • No implicit STP definition; explicitly supply temperature and absolute pressure.
  • Match every input to its displayed unit; scientific notation such as 1e-6 is accepted.
  • Check substance identity, reaction coefficients and concentration conventions. Numerical output does not verify experimental conditions.

Frequently asked questions

How can I use molar gas volume calculator online?

Enter Absolute temperature (K). Set Absolute pressure (Pa). Select Calculate, check the result units, then copy or download the JSON result.

Which model does Ideal Gas Molar Volume Calculator use?

Vm = RT/P. No implicit STP definition; explicitly supply temperature and absolute pressure.

Technical references

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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