select the correct answer.\nhow would adding the catalyst nitrogen monoxide (no) affect this…

select the correct answer.\nhow would adding the catalyst nitrogen monoxide (no) affect this reaction?\n2so₂(g) + o₂(g) → 2so₃(g)\n\na. no increases the rate at which so₃ molecules are formed.\nb. no reacts with so₃ to produce more so₂ molecules.\nc. no decreases collisions between the so₂ and o₂ molecules.\nd. no increases the concentration of the so₂ and o₂ molecules.\ne. no increases the activation energy of the so₂ and o₂ molecules.
Answer
Answer:
A. NO increases the rate at which SO₃ molecules are formed.
Explanation:
Step1: Recall catalyst definition
A catalyst speeds up a chemical reaction.
Step2: Analyze reaction
In $2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)$, NO as a catalyst will lower the activation - energy.
Step3: Determine effect
Lowering activation - energy increases the rate of formation of products ($SO_3$), so NO increases the rate at which $SO_3$ molecules are formed.