Lecture 6

Question 1

How are the Kp and Kc expressions related

Answer 1

Kp = Kc(RT)^delta(n)

–> delta(n) = sum of coefficients of gaseour P - sum of coefficients of gaseous R

REMEMBER: pure liquids/solids are not included in equilibrium expressions

Question 2

What does the equilibrium constant allow to predict?

Answer 2

1. If reaction will occur
2. The equilibrium position that will be attained

NOTE: tells us NOTHING about rate/speed of reaction

Question 3

What is the reaction quotient (Q) and what does it tell us about the equilibrium

Answer 3

Similar to equilibrium constant, but for NON-EQUILIBRIUM conditions

Q = K –> reaction is at equilibrium
Q < K –> equilibrium will proceed towards the right
Q > K –> equilibrium will proceed towards the left