Chemistry equilibrium question

[bobbarkernar]

Homework Statement

For the equalibrium: 2NOCl(g)<-->2NO(g)+Cl2(g), delta G=+77.1kJ
Determine in which direction the equilibrium will shift by the following changes.

A) Ar(g) is added to the reaction

Homework Equations

The Attempt at a Solution

My first thought is that this will not alter the equilibrium as no change has been made to the individual parts of the chemical equation. I hope someone could point me in the right direction, if i am wrong or confirm that this is the right conclusion.

Thank you,

 

[chaoseverlasting]

Are there any other conditions given? Ie constant pressure/volume. Because Argon is an inert gas, and in one of the two conditions, nothing changes. The other one does.

Constant volume, nothing changes. Constant pressure, things will change.

 

[Blueshift5]

I can confirm that your initial thought is correct. The addition of Ar(g) to the reaction will not alter the equilibrium as it is an inert gas and does not participate in the reaction. The only factors that can affect the equilibrium of a chemical reaction are changes in temperature, pressure, or the concentrations of the reactants and products. In this case, since no changes have been made to these factors, the equilibrium will remain unchanged.