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Gay-Lussac’s Law Calculator

Calculate Gay-Lussac's Law Parameters
Select Answer Mode
P1 [?]
T1 [?]
P2 [?]
T2 [?]

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Change the answer mode for this tool by selecting P1 gas pressure, T1 gas temperature, P2 gas pressure or T2 gas temperature as the parameter to calculate instead



Absolute pressure measurement products
  • DMP331i Barometric 550 to 1150 hPa abs high resolution pressure transmitter
  • Ex rated ambient pressure sensor with 800-1100 mbar range
  • DMP333 High Range Precision Pressure Transmitter
  • Load reading pressure gauge for benchtop hydraulic press

Contents

  • Related Tools
  • User Guide
    • Formulas
      • Symbols
    • P1
    • T1
    • P2
    • T2

Related Tools

  • Ideal gas law calculator
  • Boyle’s law calculator
  • Charles’ law calculator
  • Avogadro’s law calculator
  • Combined gas law calculator
  • Pressure units conversion
  • Temperature units conversion

User Guide

This tool will calculate any parameter from the equation defined by Gay-Lussac’s law, which includes  the P1 gas pressure, T1 gas temperature, P2 gas pressure and T2 gas temperature.

Avogadro’s law states that the absolute pressure of an ideal gas will vary in direct proportion to the variation in absolute temperature of the gas. For an ideal gas, the pressure of the gas is directly proportional to the temperature of the gas, as long as the volume and amount of gas remains constant.

Formulas

Gay Lussac’s Law is explained with math in the following ways.

The pressure of an ideal gas is proportional to the temperature of the gas:

P ∝ T

The pressure divided by the temperature of the gas in a given state, equals a constant value:

P / T = Constant

The division of pressure by the temperature of the ideal gas in one state, equals the division of pressure by the temperature of the ideal gas in another state, as long as the gas volume and amount of gas do not change between the two states.

P1 / T1 = P2 / T2

The formulas used by this Gay-Lussac’s law calculator to determine each individual parameter are:

P1 = P2 · T1 / T2

T1 = T2 · P1 / P2

P2 = P1 · T2 / T1

T2 = T1 · P2 / P1

Symbols

  • P1 = Pressure of the first gas state
  • T1 = Temperature of the first gas state
  • P2 = Pressure of the second gas state
  • T2 = Temperature of the second gas state

P1

This is the absolute pressure of the first gas state.

T1

This is the temperature of the first gas state.

P2

This is the absolute pressure of the second gas state.

T2

This is the temperature of the second gas state.

Temperature measurement products
  • ATM/T 10 bar pressure transmitter with integral temperature probe for 0-100degC
  • 14…140°F Temperature Range Sensor with 4-20mA Current Output Signal Transmitter
  • ProSens Environmental Monitor and Controller
  • 0…35°C Temperature Range Sensor with 4-20mA Current Output Signal Transmitter

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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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