## Le Chatelier's Principle

Posts: 93
Joined: Thu Jul 11, 2019 12:17 am

### Le Chatelier's Principle

When do you use Chatelier's Principle?

san_2F
Posts: 118
Joined: Sat Jul 20, 2019 12:15 am

### Re: Le Chatelier's Principle

You use the Chatlier's Principle any time a reaction at equilibrium is disturbed. This includes when concentrations of either reactants are products are increased or decrease, when pressure is increased or decreased, and when temperature is increased or decreased.

Amanda Mei 1B
Posts: 109
Joined: Sat Aug 24, 2019 12:16 am

### Re: Le Chatelier's Principle

Le Chatelier's Principle can predict the effect of a change in conditions on chemical equilibria. If there is a change in conditions, the equilibrium will shift to counteract the effect of the constraint.

Sara Richmond 2K
Posts: 110
Joined: Fri Aug 30, 2019 12:16 am

### Re: Le Chatelier's Principle

Le Chatelier's Principle can be used to determine how changes in specific constraints of a reaction in equilibrium will affect the other constraints of the reaction. The principle can be best understood if you look at it like a fraction. (A/B=C) In situation, C never changes. So if A is increased, then B must also increase in order that C does not change.

Example:
6/3=2
But if we raise 6 to 8, then we must raise 3 to 4 in order that 2 may stay 2.

Emily Burghart 1k
Posts: 50
Joined: Wed Sep 18, 2019 12:17 am

### Re: Le Chatelier's Principle

Is it appropriate to consider Le Chatelier's Principle as a ratio?
I.e. determining the change of one value would aid in determining the other values and thus, the equilibrium?

Ayushi2011
Posts: 101
Joined: Wed Feb 27, 2019 12:17 am

### Re: Le Chatelier's Principle

The principle states that every time there is a shift from equilibrium, the effect of the shift will be counteracted to maintain equilibrium.

Matt F
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

### Re: Le Chatelier's Principle

Emily Burghart 1k wrote:Is it appropriate to consider Le Chatelier's Principle as a ratio?
I.e. determining the change of one value would aid in determining the other values and thus, the equilibrium?

I believe so. Since the equilibrium constant K does not change regardless of changes in concentration or pressure, the change in one reactant or product would produce an equalizing response across the reaction, depending on the coefficients.

PranaviKolla2B
Posts: 114
Joined: Fri Aug 30, 2019 12:17 am

### Re: Le Chatelier's Principle

What exactly is Le Chatelier's principle?

John Liang 2I
Posts: 102
Joined: Fri Aug 30, 2019 12:18 am

### Re: Le Chatelier's Principle

Le chatlier’a principle is that a chemical rxn at equilibrium will do its best to minize effects to the system. Meaning, if product is added to a rxn at equilibrium, the reverse rxn would increase to “balance” out the inequality. It’s used to predict how a rxn at equilibrium would change if we disturbed equilibrium.

Maika Ngoie 1B
Posts: 97
Joined: Fri Aug 02, 2019 12:16 am

### Re: Le Chatelier's Principle

Le Chateliers principle is used any time a reaction at equalibrium is changed in any way

jisulee1C
Posts: 149
Joined: Thu Jul 25, 2019 12:17 am

### Re: Le Chatelier's Principle

For example if product is added the reaction will shift to reactants to undo the stress and vice versa. In addition, lowering or raising the temperature would depend on the reaction and whether it is endothermic or exothermic. For an exothermic reaction raising temperature would shift the reaction toward reactants to find the lowest energy state that is thermodynamically favored.

Justin Quan 4I
Posts: 104
Joined: Sat Sep 14, 2019 12:17 am

### Re: Le Chatelier's Principle

To add on, Le Chatelier's Principle is a set of principles or guidelines that predicts the effect of a change to a system under equilibrium conditions. You use Le Chatelier's Principle when a reaction at equilibrium is disturbed. Factors that would change equilibrium include changes in temperature, concentration, and partial pressure for gas reactions.

Minh Ngo 4G
Posts: 137
Joined: Thu Jul 25, 2019 12:17 am

### Re: Le Chatelier's Principle

When something is disturbing your chemical equilibrium and you want to see what happen next

Katie Bart 1I
Posts: 104
Joined: Sat Aug 24, 2019 12:16 am

### Re: Le Chatelier's Principle

It's all about the reaction rebalancing after a physical change occurs.

205291012
Posts: 50
Joined: Mon Nov 11, 2019 12:17 am

### Re: Le Chatelier's Principle

The principle simply states that when stress is applied to a system in dynamic equilibrium, the the equilibrium adjusts to minimize the effects of stress. So if a system is compressed, then the equilibrium will favor whichever side has fewer moles. Other examples include adding or removing a reactant/product, changing the temperature, changing partial pressure.

Jainam Shah 4I
Posts: 130
Joined: Fri Aug 30, 2019 12:16 am

### Re: Le Chatelier's Principle

Le Chatelier's principle is basically a principle that explains how a system after a sudden change or perturbation works to restore equilibrium and it highlights how things such as pressure, volume, and concentration do not affect the K constant itself, but simply it will affect how the reaction initially changes and works back to reach equilibrium.

Ruth Glauber 1C
Posts: 100
Joined: Wed Sep 18, 2019 12:20 am

### Re: Le Chatelier's Principle

It applies anytime a reaction at equilibrium is disturbed.

vanessas0123
Posts: 100
Joined: Wed Sep 11, 2019 12:17 am

### Re: Le Chatelier's Principle

You use the Principle any time a change is made to the reaction at equilibrium. The reaction will shift to minimize the effect of the change due to Le Chatelier's Principle.

Michelle Xie 2B
Posts: 99
Joined: Sat Aug 17, 2019 12:18 am

### Re: Le Chatelier's Principle

You use the principle when the reaction is no longer at equilibrium.

Emil Velasco 1H
Posts: 96
Joined: Wed Nov 21, 2018 12:19 am

### Re: Le Chatelier's Principle

Le Chatelier's Principle applies whenever a system is "disturbed" in the sense that reactants or products are added/removed.

Return to “Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions”

### Who is online

Users browsing this forum: No registered users and 1 guest