5.4.3 Predicting Reactions

Question 1

Which direction do the electrons flow?

Answer 1

• From more negative pole to more positive

Question 2

What happens at the more positive pole?

Answer 2

• More readily accept electrons from more negative pole
• So gets more easily reduced

Question 3

What happens at the more negative pole?

Answer 3

• More readily loses electrons
• So more easily oxidised

Question 4

What makes a reaction more feasible?

Answer 4

• More feasible if the Ecellꝋ is more positive
• Forward reaction may be feasible with a positive Ecellꝋ
• Backward reaction may not be feasible if it has a negative Ecellꝋ