Which of the following statements describes a reversible reaction:
Correct answer: C. Both forward and reverse reaction occur simultaneously at the same time under same conditions.
- A. Both forward and reverse reaction do not occur simultaneously
- B. Both forward and reverse reaction occur simultaneously but under different conditions
- C. Both forward and reverse reaction occur simultaneously at the same time under same conditions.
- D. Forward and reverse reaction takes place at different time and different conditions
Explanation
In dynamic equilibrium, both forward and reverse reaction takes place simultaneously because conditions applied favour both the forward and reverse reactions.
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
The standard enthalpy and entropy changes for the reaction in equilibrium for the forward reaction are given below. CO (g) + H2O (g) <----> CO2 (g) + H2 (g)∆Hº 300K = - 41.16 kJ mol-1∆Sº 300K = - 4.24 x 10^-2 kJ mol-1∆Hº 1200K = - 32.93 kJ mol-1Then, the incorrect statement is :
All of the following are applications of Kc EXCEPT:
Which one of the following statements is correct about the effect of a catalyst?
For a homogeneous reaction,4NH3 + 5O2 ⇌ 4NO + 6H2OThe units of equilibrium constant (Kc) is
One mole of HI was sealed in a tube heated at 440°C until equilibrium is reached, HI was found to be 50% dissociated, Ke for the reaction is:
In a reaction: CO(g)+2H2(g)⇌CH3OH(g) ∆H°= -92kJ / mol, if concentration of hydrogen, carbon monoxide and methanol become constant at equilibrium, what will happen?