Two sets A and B are disjoint if they have no elements in common (their intersection is the null set).
show more Ozone, O3(g), is a form of elemental oxygen that is important in the absorption of ultraviolet radiation in the stratosphere. It decomposes to O2(g) at room temperature and pressure according to the following reaction: 2O3(g)>3O2(g) (Delta)H = -284.6 kJ.
A movie of how ozone is made from oxygen Click for Animation Ozone is made up of ordinary oxygen, just like what we breathe. The only difference is that ozone is made up of three oxygen atoms, while the stuff we breathe (molecular oxygen) is made up of only two atoms. Solar rays high in the atmosphere convert O2 to O3.In the upper atmosphere, rays from the Sun break a normal oxygen molecule into two separate oxygen atoms.lick for Animation. Ozone is made up of ordinary oxygen, just like what we breathe. The only difference is that ozone is made up of three oxygen atoms, while the stuff we breathe (molecular oxygen) is made up of only two atoms. Solar rays high in the atmosphere convert O2 to O3.