Ideal Gas Law Calculator

Calculate pressure, volume, temperature, and moles using the ideal gas law equation.

Calculator

Enter Your Values

Enter the pressure in pascals (Pa)

Enter the volume in cubic meters (m³)

Enter the number of moles

Enter the temperature in kelvin (K)

Table of Contents

1 Ideal Gas Law Formula
2 How to Calculate
3 Gas Constant
Concept

Ideal Gas Law Formula

The ideal gas law is a fundamental equation that describes the relationship between pressure, volume, temperature, and the number of moles of a gas.

Formula:
PV = nRT

Where:

  • P = Pressure (Pa)
  • V = Volume (m³)
  • n = Number of moles (mol)
  • R = Gas constant (8.314 J/(mol·K))
  • T = Temperature (K)
Steps

How to Calculate

To calculate using the ideal gas law, follow these steps:

  1. 1
    Measure or determine the pressure (P) in pascals
  2. 2
    Measure or determine the volume (V) in cubic meters
  3. 3
    Calculate or measure the number of moles (n)
  4. 4
    Measure the temperature (T) in kelvin
  5. 5
    Use the ideal gas law equation to verify the relationship
Reference

Gas Constant

Constants Gas Constant Values

  • R = 8.314 J/(mol·K) (SI units)
  • R = 0.0821 L·atm/(mol·K) (common units)
  • R = 1.987 cal/(mol·K) (calories)
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