Chemistry · Chemical Equilibrium
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When does a reaction attain equilibrium :
- A
When forward and backward reaction taking place at the same rate
- B
Reaction takes place
- C
The forward and backward
- D
There are two reactions with one faster than the other
At equilibrium, the rates of the forward and backward reactions are equal, and there is no net change in the concentrations of the reactants and products. This means that the system has reached a state of balance, where the concentrations of the reactants and products remain constant over time.
At equilibrium, the rates of the forward and backward reactions are equal, and there is no net change in the concentrations of the reactants and products. This means that the system has reached a state of balance, where the concentrations of the reactants and products remain constant over time.
"Reaction takes place" is incorrect because this statement does not indicate whether the reaction has reached equilibrium or not. A reaction can take place without reaching equilibrium if the products are continuously removed or the reactants are continuously added.
"The forward and backward" is incomplete and unclear. It is not clear what is happening to the forward and backward reactions.
"There are two reactions with one faster than the other" is incorrect because this statement does not necessarily lead to equilibrium. Even if one reaction is faster than the other, the system may not reach equilibrium if the products are continuously removed or the reactants are continuously added.
Tagged under Chemistry · Chemical Equilibrium · 2009