Chemical equilibrium given below will shift to backward direction by _2N0 + 02 ←---> 2N02 + Heat
Correct answer: A. decreasing pressure and increasing temperature
- A. decreasing pressure and increasing temperature
- B. decreasing the temperature
- C. increasing the concentration of NO & 02
- D. increasing the pressure
Explanation
Since the reaction is exothermic (releases heat), lowering the temperature will shift the equilibrium to the left to produce more heat.Since there are fewer moles of gas on the reactant side (3 moles: 2 NO + 1 O₂) compared to the product side (2 moles of NO₂), decreasing the pressure will favor the backward reaction
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
Practise Chemical Equilibrium
625 free Chemical Equilibrium MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Chemical Equilibrium questions
Consider the following reaction in equilibrium and tell addition of which chemical will turn the cloudy solution into clear solution?BiCl3+H2O...>BiOCl+2HCl
Identify the CORRECT option required for the maximum yield of ammonia by Haber's Process:
The principle that states that if a stress is applied to a system at equilibrium, the system nullifies the effect of stress as far as possible is:
Forward reaction is the one that
In the production of SO3 from SO2 and oxygen, the yield of SO3 is increased by
consider N2 +3H2(g) -2NH3(g) ΔH=-92.46kj/molthe optimum temperature (C) to produce ammonia is