The document discusses the risks of using fossil fuels such as air pollution and global warming. It then introduces hydrogen as a potential alternative fuel that does not pollute and does not require burning. Hydrogen is abundant and can be used in fuel cells to produce electricity through a chemical reaction with oxygen, producing only water. However, hydrogen requires energy to produce and is difficult to store. The document argues that renewable energy and new storage technologies such as carbon fiber tanks could help address these challenges and enable hydrogen to power vehicles.

1. HYDROGEN

2. Our NE message:
~ No one owes Singapore a
living, but everyone owes Earth a
living.
We must find our own way to survive
without hurting Mother Earth. After
all, she has taken care of us our
whole life.~

3. Risk of using Fossil Fuels:
1. Causes Air Pollution
- Fossil fuels cause environmentally
unsafe compounds to form in the
atmosphere, depleting ozone levels
and increase in health
deterioration.

4. 2. Increases Global Warming
- Global warming occurs when carbon
dioxide accumulates in the
atmosphere. Carbon monoxide is
produced by the combustion of fossil
fuels and converted into carbon
dioxide. the surface temperature of
the earth is increasing drastically.

5. In April, 2005, the EPA identified 17
counties in Indiana that failed to meet
the 1997 air quality standards for
health protection regarding fine
particles
The primary source of fine particle
emissions comes from combustion of
fossil fuels.

6.  Advantages of using Hydrogen as an
alternative fuel:
1. Virtually it creates no pollution, clean.
2. Does not involves burning in a fuel cell.
3. Most abundant element. Makes up about ¾ of
all matter

8. Basically the name
of the game is to
make electricity and
get the electric
current to flow from
the cell into the
electric motor where
the electricity can
be used to generate
power for the
vehicle to move.

9. Catalyst at the electrode Negative e- becomes the
Hydrogen atoms enters
causes a chemical reaction DC (direct current) flows
cell at anode (-ve
to remove e-. Forming through inverter that
electrode)
H+ converts to AC.
Oxygen enters the cell at
Electricity that flows
the cathode (positive
through wires and cables
electrode) combines there
to provide power to the
with e- to the anode with
load (motor)
H+

10. Chemical Equation:
In acidic electrolyte
Reaction at anode:
2H2(g) -> 4H+(aq) + 4e-
Reaction at cathode:
O2(g) + 4H+(aq) +4e- ->
2H2O(l)
F.g: Fuel Cell reaction
Overall equation:
2H2(g) + O2(g) ->
2H2O(l)

11. To produce hydrogen gas requires
great deal of energy and not
environmental friendly.
Hydrogen is an energy carrier
rather than an energy source
Hydrogen is very
powerful, making it difficult to
store.

12. Utilizing renewable energy sources like
wind power and solar power which can
reduce the carbon emissions alongside
cutting operating and capital costs.
With the availability of technology like
carbon fiber tanks, storage of hydrogen
is very safe.

13. Video Time!

14. Hydrogen: The road to
FUTURE.

15.  Group Members:
1. Haziq.Zulkifili
2. Khairul Amatamin
3. Logaeswary
4. Uma
5. Khadijah
6. Sohila
Class : 10S4