A soft keyboard (sometimes called an onscreen keyboard or software keyboard) is a system that replaces the hardware keyboard on a computing device with an on-screen image map.
An ideal gas is defined as one in which all collisions between atoms or molecules are perfectly eleastic and in which there are no intermolecular attractive forces. One can visualize it as a collection of perfectly hard spheres which collide but which otherwise do not interact with each other.
other gas laws boyle s law and charles law this page takes a simple look at boyle s law and charles law and is suitable for 16 18 year old chemistry students doing a course the equivalent of uk a level the aim is simply to show how these laws relate to kinetic theory in a non mathematical way and to the ideal gas equation