Sustainability

Energy given out during hydrogen is the same as the energy taken in during hydrogen formation during .

The fuels are used to supply energy produce which is a gas that contributes to warming and

change.

The high energy for making hydrogen means a lot of fuel is needed

Combustion reaction is / gives out energy

Combustion reaction gives out a lot of energy

Hydrogen combustion has a small activation energy

Points about making hydrogen energy change

Making hydrogen is takes in energy

Making hydrogen takes in a lot of energy as there is a large activation