5B Equilibria

What’s the definition of dynamic equilibrium

An equilibrium that exists in a closed system when the rate of the forward forward reaction is equal to the rate of the reverse reaction and concentrations do not change

Whats is Le Chatelier’s principle

When a system in dynamic equilibrium is subjected to an external change, the system adjusts itself to minimise the effects of the change and to restore equilibrium

What does increasing temperature do to the position of equilbrium?

Position of equilibrium will shift to the direction of the endothermic reaction, because it will absorb the increase in heat energy

What does increasing pressure do to the position of equilibrium

Position of equilibrium will shift to the side with less moles of gas

What’s the equation for Kc

Whats the equation for Kp

What is partial pressure

The partial pressure of a gas is the pressure exerted by a gas in a mixture, if it alone occupied the whole container

Whats the equation for partial pressure

Partial pressure = mole fraction x total pressure

Whats a homogenous equilibrium

Equilibrium where all the species making up the reactants and products have the same physical state

Whats a heterogenous equilibrium

Equilibrium where the species making up the reactants and products have different physical states

Learn this table for choosing conditions