In an electrolytic Cell using molten KBr,?

Question

what is formed at the anode? What is formed at the cathode? Would there be any differences if the KBr were dissolved in water rather than molten? Can you please explain why? Thank you..

Answer 1

Molten: the products would be molten K metal (cathode) and gaseous Br2 (anode).

Aqueous: H2 gas (cathode) and Br2 in solution (anode).

The simple reason is that K is way above H in the reactivity series, and H+ ions are much easier to reduce than K+ ions. The H+ ions come from the water.

Answer 2

It will increase the connectivity of the cell because K Br are a soluble and electrolytic salt