Is embedding the ideal gas simulator free?

Yes. It is free to embed on any site, with no account, no API key and no usage limits. The whole simulation runs in your visitor’s own browser, so there is no server cost — we only ask that you keep the small "Ideal Gas Law Simulator by LK Forge" credit line that comes with the embed code.

What can visitors do with the embedded simulator?

They can change the number of particles, the temperature and the volume of a gas in a box using three sliders, and watch the particles fly and bounce off the walls in real time. A live panel reports the particle count, the temperature, the measured pressure, the volume and — the key one — PV divided by N times T, which stays constant no matter which slider they move.

Does the embed teach the ideal gas law?

Yes, and it does it by demonstration rather than assertion. Temperature is computed from the particles’ average kinetic energy, pressure is measured from the momentum they deliver to the walls, and volume is the size of the box. Because nothing imposes the law, watching PV/NT hold steady as you heat, compress or add gas shows PV = NkT emerging from the collisions themselves.

What iframe height should I use, especially on mobile?

The snippet ships with height="900", which is tall enough that the box, the sliders and the readouts all fit without clipping even on a narrow phone where everything stacks into a single column. On a wider page the widget simply centres within its max-width of 560px. If you want it shorter you can lower the height, but 900 is the safe default across screen sizes.

Where can I embed it — WordPress, Wix, Squarespace, Notion?

Anywhere you can add HTML, because it is a standard iframe. In WordPress use a Custom HTML block; in Squarespace a Code/Embed block; in Wix an Embed HTML element; in Ghost an HTML card; in Notion paste the /embed/ideal-gas/ URL as an embed. On a plain HTML page or an intranet, paste the snippet straight into the markup.

Does the embedded simulator track visitors or set cookies?

No. Everything runs locally in the visitor’s browser — nothing is uploaded. The embed sets no tracking cookies and sends no analytics, so it is safe to place on a privacy-sensitive site, an intranet, or a page for students.

Widgets

How to Add an Ideal Gas Simulator to Your Website

LK Forge · 4 min read · Updated September 2026

You can add a full ideal gas simulator to any website, blog, or classroom page with a single line of code — free, with no sign-up, no plugin, and no script to install. Visitors change the particles, temperature and volume of a gas in a box and watch the ideal gas law appear on its own. This guide covers the fastest way to embed the Ideal Gas Law Simulator, what it teaches, and where it works.

The quickest way: paste one embed snippet

An embed is just an <iframe> that loads the simulator from lkforge.com, plus a small credit line. Copy this into your page’s HTML where you want the widget to appear:

<iframe src="https://lkforge.com/embed/ideal-gas/"
        width="100%" height="900" loading="lazy"
        style="border:0;max-width:560px"
        title="Ideal Gas Law Simulator by LK Forge"></iframe>
<p><a href="https://lkforge.com/tools/physics/ideal-gas/">Ideal Gas Law Simulator</a>
   by <a href="https://lkforge.com/">LK Forge</a></p>

The <iframe> is the live simulator; the <p> underneath is a plain credit link. Keep that line — the visible link is what keeps the widget free to embed. You can also copy this exact code straight from the LK Forge widget gallery.

What the widget shows

The simulator opens with a box of gas already bouncing, so a visitor sees the motion immediately and can then take control:

Particles: add or remove gas particles and watch the pressure climb or fall.
Temperature: heat or cool the gas — the particles speed up or slow down, and so do their wall collisions.
Volume: slide the piston to compress or expand the box.
Live readouts: N, temperature, pressure and volume, plus PV/NT — the quantity that stays constant and proves the ideal gas law.

Pick the right height

The snippet uses height="900", which fits the box, the sliders and the readouts without clipping even on a narrow phone, where they stack into one column. On a wider page the widget centres within its max-width:560px. That single height works across screen sizes, so there is nothing to tweak for mobile.

Where it works

Because it is a standard iframe, the embed works anywhere you can add HTML:

WordPress: add a Custom HTML block and paste the snippet.
Squarespace: use a Code / Embed block.
Wix: add an Embed HTML / iframe element.
Ghost: insert an HTML card.
Notion: paste the /embed/ideal-gas/ URL and choose "Create embed".
Plain HTML, an intranet, or a lesson page: paste the snippet straight into the markup.

That’s the whole job. Copy the embed code from the widget gallery and paste it wherever a physics or chemistry lesson on gas laws, kinetic theory or thermodynamics needs a gas students can actually squeeze and heat.

Grab the embed code from the LK Forge widget gallery — free, no sign-up.

Open the Ideal Gas Simulator

Frequently asked questions

Is embedding the ideal gas simulator free?: Yes. It is free to embed on any site, with no account, no API key and no usage limits. The whole simulation runs in your visitor’s own browser, so there is no server cost — we only ask that you keep the small "Ideal Gas Law Simulator by LK Forge" credit line that comes with the embed code.
What can visitors do with the embedded simulator?: They can change the number of particles, the temperature and the volume of a gas in a box using three sliders, and watch the particles fly and bounce off the walls in real time. A live panel reports the particle count, the temperature, the measured pressure, the volume and — the key one — PV divided by N times T, which stays constant no matter which slider they move.
Does the embed teach the ideal gas law?: Yes, and it does it by demonstration rather than assertion. Temperature is computed from the particles’ average kinetic energy, pressure is measured from the momentum they deliver to the walls, and volume is the size of the box. Because nothing imposes the law, watching PV/NT hold steady as you heat, compress or add gas shows PV = NkT emerging from the collisions themselves.
What iframe height should I use, especially on mobile?: The snippet ships with height="900", which is tall enough that the box, the sliders and the readouts all fit without clipping even on a narrow phone where everything stacks into a single column. On a wider page the widget simply centres within its max-width of 560px. If you want it shorter you can lower the height, but 900 is the safe default across screen sizes.
Where can I embed it — WordPress, Wix, Squarespace, Notion?: Anywhere you can add HTML, because it is a standard iframe. In WordPress use a Custom HTML block; in Squarespace a Code/Embed block; in Wix an Embed HTML element; in Ghost an HTML card; in Notion paste the /embed/ideal-gas/ URL as an embed. On a plain HTML page or an intranet, paste the snippet straight into the markup.
Does the embedded simulator track visitors or set cookies?: No. Everything runs locally in the visitor’s browser — nothing is uploaded. The embed sets no tracking cookies and sends no analytics, so it is safe to place on a privacy-sensitive site, an intranet, or a page for students.