Fuel Cells

Question 1

What did William Nicholson do in 1800

Answer 1

Pass an electric current through water using platinum electrodes

Question 2

What did passing electricity through water using platinum electrodes produce

Answer 2

Hydrogen and oxygen

Question 3

Who made the voltaic battery and when

Answer 3

1839- William Grove

Question 4

Exothermic

Answer 4

A reaction where energy is transferred to its surroundings

Question 5

What does hydrogen react explosively with

Answer 5

Oxygen

Question 6

What is the energy in the reaction used for

Answer 6

Producing a potential difference or voltage

Question 7

Equation that takes place in hydrogen-oxygen fuel cell.

Answer 7

Hydrogen+ oxygen = water

2(H2) + O2 = 2(H2O)

Question 8

What happens to hydrogen ions at the anode

Answer 8

They loosen electrons and become hydrogen ions

H2 - 2e- = 2(H+)

Question 9

What happens when the hydrogen ions reach the Cathode

Answer 9

They react with the electrons and oxygen to form an electrical circuit:
4(H+) + O2 + 4(e-) = 2(H2O)