Comparison of primary cells to secondary cells

Question 1

What happens to products in primary and secondary cells?

Answer 1

Primary cells are not rechargeable as products lose contact with electrodes or are consumed in side reactions
Secondary cells are rechargeable as products remain in contact with electrodes

Question 2

What happens when secondary cells discharge?

Answer 2

Spontaneous, act as galvanic cell, anode is neg/cathode is pos

Question 3

What happens when secondary cells recharge?

Answer 3

Non spontaneous so must be connected to power supply, electrolytic cell, anode is positive/cathode is neg.

Question 4

why is it important that products remain in contact with electrodes in secondary cells?

Answer 4

So they can be used as reactants again.