Le Chats Princi

Question 1

What is le chats principle

Answer 1

“If an external stress is applied to a system at equilibrium, the system adjusts itself in such a way that the stress is partially offset.”

“If a change is imposed on a system at equilibrium, the position of the equilibrium shifts in direction to counteract the change.”

Question 2

What happens to reaction quotient (Q) if reactant or product are removed/added to a reaction at equilibrium

Answer 2

Q no longer equal the equilibrium constant

Question 3

If volume is decreased what does reaction do

What if increased

Answer 3

The pressure increases so it goes to side with fewer moles gas

Pressure decreases so it goes to side with greater moles gas

Question 4

If temp increases where does equilibrium shift

what if decreases

Answer 4

IDK

Question 5

What do catalysts do

Answer 5

Not consumed or produced during rxn
Do not affect enthalpy change of rxn

Do Affect rate of rxn, help reach equilibrium faster but does not change the position of equilibrium

Question 6

When can we use small x approx
How do you check if the approx is valid

Answer 6

When k is very small (<10^-3)

X value you calculate/the initial concentration