Hydrogen Fuel cell | GCSE Chemistry (9-1) | kayscience.com

For more videos, self assessed quizzes, and worksheets visit https://www.kayscience.com

In this video, you will learn this model answer:

Hydrogen fuel cells produce electricity by reacting hydrogen and oxygen in a fuel cell. The electrodes are made of graphite. Hydrogen gas is supplied to the negative electrode and oxygen gas is supplied to the positive electrode. The electrolyte is alkaline e.g. potassium hydroxide solution which contains dissolved OH- ions. The hydrogen gas diffuses through the graphite electrode and reacts with OH- ions forming water, supplying electrons to the circuit. The oxygen gas diffuses through the graphite electrode, reacting with the hydrogen ions to form hydroxide ions.

All content, music, images, worksheets are the property of kayscience.com

We aim for you to get 100% in your exam by revising and learning with KayScience.

Видео Hydrogen Fuel cell | GCSE Chemistry (9-1) | kayscience.com канала Kay Science