# How Far? Videos

The videos below are from the YouTube channels MaChemGuy and Mr C Dunkley. Subscribe to keep up to date with the latest videos.

#### Overview: How Far?

This is an overview of Topic 22: “How Far?”. It includes typical Kc and Kp questions and units.

#### The Equilibrium Constant Kc

This video introduces the equilibrium constant Kc and uses worked examples to aid explanations.

#### Kc Calculations 1

This video demonstrates how to approach a typical exam style question using Kc.

#### Kc Calculations 2

This video demonstrates how to approach a typical exam style question using Kc.

#### Kc for Heterogeneous Equilibria

This video shows how to calculate Kc for heterogeneous equilibria and provides a typical question.

#### Explain in terms of Kc

This video explains how to answer typical questions asking about the composition of an equilibrium mixture when a factor is changed in terms of Kc.

#### The Equilibrium Constant Kp

Video introducing Kp equilibrium constant and explains how the pressures of components of gaseous equilibria can be used to calculate an equilibrium constant.

#### Kp Calculations involving Total Pressure

This video demonstrates how to calculate partial pressures from total pressure using examples.

#### Kp Calculations involving Mole Fractions

This video demonstrates how to calculate mole fractions and partial pressure and provides worked calculations for Kp.