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Gay-Lussac Pressure-Temperature Law Calculator

Find the new pressure of a fixed volume of gas when its temperature changes.

Inputs

Results

Final pressure121.0068kPa
Pressure increase19.70683kPa

Chart

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Describe what you want to find — “pressure and temperature” — and jump to the right calculator.

How to use the gay-lussac pressure-temperature law calculator

Find the new pressure of a fixed volume of gas when its temperature changes. Enter initial pressure, initial temperature, final temperature in the fields above; the final pressure, pressure increase are computed instantly and plotted on the chart so you can see how the answer changes.

Common searches this calculator answers include “pressure and temperature”, “gas in sealed container heated”, “gay lussac law”, “calculate gay-lussac pressure-temperature law”, “find final pressure”.

Formula

Final pressure (kPa) = P1 × T2 / T1
Pressure increase (kPa) = [Final pressure]-P1

Variables

  • P1 — Initial pressure (kPa)
  • T1 — Initial temperature (K)
  • T2 — Final temperature (K)

Worked example

With initial pressure = 101.3 kPa, initial temperature = 293 K, final temperature = 350 K, the calculator gives final pressure ≈ 121.0068 kPa; pressure increase ≈ 19.70683 kPa.

Frequently asked questions

What is the gay-lussac pressure-temperature law calculator used for?

Find the new pressure of a fixed volume of gas when its temperature changes. It helps with questions such as “pressure and temperature”, “gas in sealed container heated”, “gay lussac law”.

What is the formula for the gay-lussac pressure-temperature law calculation?

Final pressure (kPa) = P1 × T2 / T1. Pressure increase (kPa) = [Final pressure]-P1. Here P1 is initial pressure (kPa), T1 is initial temperature (K), T2 is final temperature (K).

What inputs do I need for the gay-lussac pressure-temperature law calculator?

You need initial pressure in kPa, initial temperature in K, final temperature in K. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.

How do I use the gay-lussac pressure-temperature law calculator?

Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.

Is the gay-lussac pressure-temperature law result exact?

Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.

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