Question

Le Chatelier's principle describes the effect of changing conditions on a chemical reaction that was previously at equilibrium. Choose the statement that correctly describes the possible effects.A. Adding more carbon dioxide to a combustion reaction will increase the rate of the reaction.B.When oxygen is removed from a combustion reaction, the reaction slows down or stops.C.When water is added to a combustion reaction, it will increase the rate of the reaction.

Answer 1

.B.When oxygen is removed from a combustion reaction, the reaction slows down or stops.

Step-by-step explanation:

Le Chatelier's principle -

The direction of the reaction by changing the concentration can be determined by Le Chatelier's principle,

It states that ,

When a reaction is at equilibrium , Changing the concentration , pressure, temperature disturbs the equilibrium , and the reaction again tries to attain equilibrium by counteracting the change.

The combustion reaction of carbon dioxide is as follows -

C + O₂ → CO₂

Hence ,

Removing O₂ from the system , i.e. decreasing the concentration of O₂ , according to Le Chatelier , the reaction will move in backward direction , to increase the amount of reduced O₂ .

Hence, reaction will go in backward direction.