Consider the following exothermic reaction \(2SO_{2(g)} + O_{2(g)} = 2SO_{3(g)}\) . If the temperature of...

JAMB 1979

Consider the following exothermic reaction \(2SO_{2(g)} + O_{2(g)} = 2SO_{3(g)}\) . If the temperature of the reaction is reduced from 800ºC to 500ºC, and no other change takes place, then

A. the reaction rate increases
B. concentration of SO₃ decreases
C. concentration of SO₃ increases
D. SO₂ gas becomes unreactive
E. O₂ gas becomes unreactive

Your School's Whatsapp Group - Join Us now

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

Correct Answer: Option C

Explanation

reducing the temperature from 800ºc to 500ºc will favour forward reaction according to Le Chatelier's principle hence the concentration of \(SO_3\) increases.

Previous Next

Go back to Chem classroom

Report an Error Ask A Question Download App