Fuel Cells R Flashcards
Is breaking the chemical bond an endothermic process or an exothermic process
It is an endothermic process
How can the amount of energy produced in a chemical reaction be measured
By mixing the reactants in an insulated container
What do the chemicals in cells react together to release
Electricity
A simple cell can be made by______
Placing two different metals into a beaker containing an electrolyte
When are batteries made
When two or more cells are connected together
The voltage produced by yourself is dependent on a number of factors such as
The type of electrode and the electrolyte used
What can cells joined in a series produce
A higher voltage
Non rechargeable battery stop producing electricity when _____
One of the reactions has been used up
What do most fuel cells use
Hydrogen
In a hydrogen fuel cell what is the fuel oxidised to produce
The fuel is oxidised to produce a potential difference (voltage)
Are fuel cells polluting or not
They are not polluting
Why are hydrogen fuel cells unlikely to break down
They have no moving parts so are very unlikely to break down
What two elements are supplied to a hydrogen fuel cell
Hydrogen and oxygen
In a hydrogen fuel cell what is hydrogen oxidised to form
Overall the hydrogen is oxidised to form water
What do hydrogen fuel cells do which is not pollutong
They produce water
