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Le Chatelier's principle essentially states that if a stress is imposed on a system at equilibrium, the equilibrium will shift to minimize the stress.
These stresses include:
-Change in temperature
-Change in pressure/volume (for gases)
-Change in concentration
A simple example of this:
N2(g) + 3 H2(g) ⇌ 2 NH3(g) ΔH = −92kJ/mol
-If you add N2(g) or 3 H2(g) the equilibrium will shift to the right (to the products), and more NH3(g) will be created so as to minimize the stress.
- If you add NH3(g), the equilibrium will shift to the left (to the reactants), and more N2(g) and H2(g) will be created.
-If you increase the temperature, the equilibrium will shift to the left (to the reactants). The reason for this is that the above reaction is exothermic, and releases heat. Consequently, the heat is on the side of the products, and thus if you add heat, the equilibrium will shift to the reactants and more N2(g) and H2(g) will be created.
- If you increased the pressure, which is the same as decreasing the volume, the reaction will shift to the side with fewer moles, which, in this case, is the products. Thus, more NH3(g) will be created.
-Conversely, if you decrease the pressure (increase the volume), the reaction will shift to the side with a greater number of moles, which, in this case, is the reactants. Thus, more N2(g) and H2(g) will be created.
*It is important to note that changing pressure and volume only effects the equilibrium in gaseous reactions!
Wiki User
∙ 15y ago
Anonymous
A reaction at equilibrium will respond to balance a change
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What does Le Chtelier's principle state?
The Le Chtelier's principle states one thing. It is the dynamic equilibrium which is disturbed by changing the conditions and the position of equilibrium moves that makes a change.
What does Le Châtelier's principle state?
A reaction at equilibrium will respond to balance a change. :D
What does the Common Ion Effect state?
the common ion effect holds testimony to the Le Chatelier's principle.
What does Le Châtelier s principle predict would happen to the equilibrium conditions if N2O4 were added to the system?
I suppose that the principle of Le Châtelier is not applicable in this case.
Did henry le chatelier win a nobel prize?
NO!!! Because the Nobel Prizes had not been inurgurated when le Chetelier promulgated his principle.
What does Le Chtelier's principle state?
The Le Chtelier's principle states one thing. It is the dynamic equilibrium which is disturbed by changing the conditions and the position of equilibrium moves that makes a change.
What does Le Châtelier's principle state?
A reaction at equilibrium will respond to balance a change. :D
What does the Common Ion Effect state?
the common ion effect holds testimony to the Le Chatelier's principle.
What does Le chateliers principle state (apex)?
A reaction at equilibrium will respond to balance a change - apex (Explanation): The answer is NOT "a new equilibrium ratio will form", because although this is true, it will not necessarily always happen and is not what le chatelier's principle is about. His principle focuses on the reaction changing to cancel out or balance the change in equilibrium. Therefore, this is the correct answer.
What does Le Ch and Atilde and centtelier's principle state?
Le Chatelier's principle states that a system at equilibrium will respond to stress by shifting to minimize the effect of the stress and re-establish equilibrium. This means that if a system is subjected to a change in concentration, temperature, or pressure, it will adjust its composition to counteract the change.
What does Le Châtelier s principle predict would happen to the equilibrium conditions if N2O4 were added to the system?
I suppose that the principle of Le Châtelier is not applicable in this case.
Why solid substances can't be titrated?
Look at Le Chatelier's Principle :)
Buffer and its mechanism of action?
A buffer solution works under the combined principle of common ion effect and Le Chatelier's principle
What is the principle of transmission of pressure?
State The principle of transmissibility of pressure
What is the principle of transmissibility of pressure?
State The principle of transmissibility of pressure
In Le Chatelier's principle what could shift an equillibrium?
temp, pressure, concentrations
What stressors will affect the value for Keq according to Le Chatelier's principle?
Temperature
