Gas Laws HD Lite

Gas Laws HD Lite is a free iOS app that I have found to be very convenient for allowing students to discover the relationship of Boyle’s Law and Charles Law. It is developed by Tj Fletcher and can be used on the iPad.

This app is great if you don’t have a set of syringes to use as a means of measuring volume and pressure. Units available with the app for pressure include atm, kPa, or mmHg and a simulated digital measuring device is included. A quick slide of your finger back and forth on the syringe changes the volume of the gas in the syringe and as a result the pressure exerted by the gas is displayed. Pair this up with a nice graphing app and a nice graph showing the relationship between pressure and volume and volume and temperature can be displayed quickly. A similar simulation is also used for showing Charles Law.


Pick Attribution: 

Tj Fletcher

Publication Date: 
Thursday, December 8, 2011
3 comments. Join the conversation.


Eman Star | Mon, 10/21/2013 - 17:32

I teach at Qatar university, Qatar and I would like to download true application and use it for our students and I would appreciate if you allow me to download it . Thank you 

JCE Web Admin's picture
JCE Web Admin | Tue, 10/22/2013 - 08:49

See the Pick Link for the download location. This link should take you to the MacApp Store where you can download the application, if it is available in the store for your country.

Doug Ragan's picture
Doug Ragan | Tue, 10/22/2013 - 11:55

I do not own the app therefore I have no say it being downloaded.

Doug Ragan


Chemistry teacher

Hudsonville High School

Hudsonville, Michigan