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Ideal Gas Law Calculator

Calculate Ideal Gas Law Parameters
Select Answer Mode
Pressure (P) [?]
Volume (V) [?]
Amount Of Substance (n) [?]
Temperature (T) [?]

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✕ clear settings

Change the answer mode for this tool by selecting gas pressure (P), gas volume (V), amount of substance of gas (n) or gas temperature (T) as the parameter to calculate instead



Absolute pressure measurement products
  • 20 kg/cm² range 5Vdc output pressure transducer for potable water
  • 5 to 30 psi abs range 0-10Vdc output air pressure sensor for air compression use
  • Ex rated ambient pressure sensor with 800-1100 mbar range
  • Outside HVAC 900-1100 mbar abs baro range 4-20mA signal pressure sensor

Contents

  • Related Tools
  • User Guide
    • Formulas
      • Symbols
    • Pressure (P)
    • Volume (V)
    • Amount Of Substance (n)
    • Temperature (T)

Related Tools

  • Boyle’s law calculator
  • Charles’ law calculator
  • Avogadro’s law calculator
  • Gay-Lussac’s law calculator
  • Combined gas law calculator
  • Pressure units conversion
  • Volume units conversion
  • Temperature units conversion

User Guide

This tool will calculate any parameter from the equation for the ideal gas law, which includes  the pressure, volume, amount of substance and temperature of a quantity of gas.

Formulas

The Ideal gas law is explained with math in the following way.

Using SI units for each parameter, the multiplying together of pressure and volume will equal the multiplying together of the amount of substance, the temperature and the ideal gas constant.

P · V = n · R · T

The formulas used by this ideal gas law calculator to determine each individual parameter are:

P =  n · R · T / V

V = n · R · T / P

n = P · V / (R · T)

T = P · V / (n · R)

Symbols

  • P = Pressure of gas
  • V = Volume of gas
  • n = Amount of substance of gas
  • R = Ideal gas constant (8.31446261815324 J⋅K-1⋅mol-1)
  • T = Temperature of gas

Pressure (P)

This is the absolute pressure of the gas.

Volume (V)

This is the total volume occupied by the gas.

Amount Of Substance (n)

This is the number of gas atoms or molecules that are included in the quantity of gas.

Temperature (T)

This is the temperature of the gas.

Temperature measurement products
  • 40T48 Digital Readout with Alarm Relays
  • Temperature Measuring Submersible Sensors and Instruments
  • SF6 Temperature Corrected Pressure Gauge (0-11 bar absolute)
  • Combined Temperature and Hydrostatic Liquid Level Sensors

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Measure Temperature In A Liquid

Submerge this STT-26 Probe to measure the temperature of a liquid and transmit a 4-20mA current loop output signal.
Submerge this STT-26 Probe to measure the temperature of a liquid and transmit a 4-20mA current loop output signal.

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