In this topic we extend the idea of an equilibriium constant to gaseous reactions, introducing the equilibrium constant Kp.
After working through this topic you will be able to:
- understand the meaning of the terms partial pressure and mole fraction;
- devise expressions for Kp for homogeneous and heterogeneous gaseous reactions and devise units for Kp;
- understand the link between Kc and Kp;
- identify misconceptions that students have about Kc;
- appreciate the difficulties some students have in calculating Kc and put into practice strategies to help them.