Equilibrium: Crash Course Chemistry

The video explores the concept of balance in life and science, focusing on chemical equilibrium. It explains how chemical reactions can reach equilibrium, where forward and reverse reactions occur at the same rate. The Haber process is used as an example to illustrate equilibrium dynamics and Le Chatelier's principle, which describes how systems at equilibrium respond to changes in concentration, pressure, and temperature. The video concludes with a demonstration of equilibrium using cobalt ions, highlighting the dynamic nature of chemical reactions.

What is the scientific term for balance in natural systems?

• Harmony

• Equilibrium

• Stability

• Symmetry

In a chemical reaction, what is the term for the process where products revert to reactants?

• Forward reaction

• Reverse reaction

• Side reaction

• Chain reaction

What happens when the forward and reverse reactions occur at the same rate?

• Chemical equilibrium is achieved

• The reaction speeds up

• The reaction stops

• The reaction reverses

According to Le Chatelier's principle, what happens when stress is applied to a system at equilibrium?

• The system shifts to minimize the stress

• The system speeds up

• The system remains unchanged

• The system stops reacting

What effect does increasing pressure have on the Haber process?

• It stops the reaction

• It has no effect

• It decreases ammonia production

• It increases ammonia production

What is the main benefit of the Haber process in agriculture?

• It produces pesticides

• It creates chemical fertilizers

• It generates renewable energy

• It purifies water

How does temperature affect endothermic reactions?

• Lower temperatures favor them

• Temperature has no effect

• Higher temperatures slow them down

• Higher temperatures favor them