Answer :
Answer:
The correct answer for the reverse reaction is the third option starting from top.
Explanation:
If we examine the given chemical equation:
2SO2 + O2 ⇌ 2SO3
The double arrow indicates that the reaction goes in both directions:
2SO2 + O2 -> 2SO3
2SO3 -> 2SO2 + O2
However, the closest option for the real situation would be the product from the semirreaction reacting in turn with oxygen:
2SO3 + O2 -> 2SO2
Thus, the correct answer is the third.
Answer:
2SO3 -> 2SO2 + O2 (not shown in the options)
Explanation:
In a reversible reaction, reactants react to produce products and products react to produce reactants, simultaneously.
Given the reversible reaction:
2SO2 + O2 ⇌ 2SO3
It has a forward reaction:
2SO2 + O2 -> 2SO3
and a reverse reaction:
2SO2 + O2 <- 2SO3