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Q. Elementary reaction 2SO2 + O2 = Product. If pressure is increased by 3 times then reaction rate becomes ? a. Increases by 3 times b. Increases by 9 times c. Increases by 18 times d. Increases by 27 times Here correct answer is d. How it came ?

Q. Elementary reaction 2SO2 + O2 = Product. If pressure is increased by 3 times then reaction rate becomes ?

a. Increases by 3 times

b. Increases by 9 times

c. Increases by 18 times

d. Increases by 27 times



Here correct answer is d.

How it came ?

Grade:12

1 Answers

India VK
42 Points
8 years ago
Reaction rate = [SO2]2.[O2] If pressure is increased 3 times then (at same temperature) volume must decrease 3 times as well. So [SO2] and [O2] both increase 3 times. This is because [SO2] and [O2] is inversely proportional to volume. So reaction rate increases 3^2.3 =27 times

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