Now lets discuss about Le Chatelier's Principle. This scientist have investigated a dynamic equilibrium. He disturbed an equilibrium reaction by changing the condition of the reaction. When he changes the concentration of a reactant, from the color of the color of the substances he found that the color change. He disturbs both side, one by one, reactant and product.
From his finding, when a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change.
Okay, now we use Le Chatelier's Principle with a change of concentration
For example an equilibrium reaction : A + B = C + D.
What would happen if you changed the conditions by increasing the concentration of A? According to Le Chatelier, the position of equilibrium will shifts to counteract the change. It means the position of equilibrium will shift, so the concentration of A decreases, because it reacts with B and it turns into C + D. The position of equilibrium shifts to the right. So if concentration of the left increases, the equilibrium shifts to the right. The Le Chatelier principle is very useful for industries, because this evidence can help them to determine which substance should be added to make the high profit. So they have to think an economical judgment. They have to find the cheapest raw materials rather than the expensive one.
Now, what would happen if you changed the conditions by decreasing the concentration of D (You remove the product from the equilibrium)?
The position of equilibrium will shift so that the concentration of D increases. It means that more A and B will react to replace the D that has been removed. The position of equilibrium shifts to the right. So if concentration of the right decreases, the equilibrium shift to the right.
From his finding, when a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change.
Okay, now we use Le Chatelier's Principle with a change of concentration
For example an equilibrium reaction : A + B = C + D.
What would happen if you changed the conditions by increasing the concentration of A? According to Le Chatelier, the position of equilibrium will shifts to counteract the change. It means the position of equilibrium will shift, so the concentration of A decreases, because it reacts with B and it turns into C + D. The position of equilibrium shifts to the right. So if concentration of the left increases, the equilibrium shifts to the right. The Le Chatelier principle is very useful for industries, because this evidence can help them to determine which substance should be added to make the high profit. So they have to think an economical judgment. They have to find the cheapest raw materials rather than the expensive one.
Now, what would happen if you changed the conditions by decreasing the concentration of D (You remove the product from the equilibrium)?
The position of equilibrium will shift so that the concentration of D increases. It means that more A and B will react to replace the D that has been removed. The position of equilibrium shifts to the right. So if concentration of the right decreases, the equilibrium shift to the right.
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