If sulfur dioxide and oxygen can be made into sulfur troxide, what is the reverse reaction?

2SO3-->2SO2+O2***

SO3+O2-->SO5

2SO2+O2-->2SO3

SO3+2SO3-->3S+4O2

The reverse reaction of the formation of sulfur trioxide (SO3) from sulfur dioxide (SO2) and oxygen (O2) is represented by the equation:

2SO3 -> 2SO2 + O2

To understand and determine the reverse reaction, we need to look at the chemical equation. The coefficients in front of the molecules indicate the relative number of molecules participating in the reaction.

In this case, the equation shows that 2 molecules of SO3 can react to produce 2 molecules of SO2 and 1 molecule of O2. Therefore, the reverse reaction will involve the opposite process, where 2 molecules of SO2 and 1 molecule of O2 combine to form 2 molecules of SO3.

So, the reverse reaction would be:

2SO2 + O2 -> 2SO3