The document discusses combustion reactions and provides examples. A combustion reaction occurs when a fuel and oxidant react, producing heat or heat and light. The fire triangle represents the three components needed for fire: oxygen, heat, and fuel. Activation energy is the minimum amount of energy needed to start a combustion reaction. A combustion engine uses the combustion of fuel to create motion, such as powering a vehicle. NASCAR engines differ from street car engines in that they have more combustion due to operating at higher speeds. Nitrous oxide can improve engine performance by providing more oxygen during combustion, allowing the engine to produce more power. The document also discusses penalties imposed by NASCAR for cheating that provided aerodynamic advantages.

1. Combustion Reactions
By: Glizyl Luna

2. What are the different types of
chemical reactions?
● Combustion
● Synthesis
● Decomposition
● Single displacement
● Double displacement
● Acid-Base

3. What is a combustion reaction?
 A combustion reaction
takes place when a
fuel and an oxidant
react, producing heat
or heat and light.

4. What is the fire triangle?
● The fire triangle
what produces the
fire which is first
oxygen, then heat,
then the fuel and
the chemical,
exothermic reaction
that is the fire.

5. What is activation energy?
● It is the amount of
energy needed to
start the reaction.

6. Why is heat/energy a necessary
part of the triangle?
● Without sufficient
heat a fire cannot
begin.
● Without the three
things: heat, oxygen
and fuel, the fire
won't begin.

7. How is the cook top of you stove
a real life example of a fire
triangle?
● The stove use
oxygen, heat, and fuel
to cook food on the
stove.

8. What is a combustion engine?
● It is an engine in which the
combustion of a fuel occurs
with an oxidizer in a
combustion chamber.
● The expansion of the high
temperature and pressure gases,
produced by the combustion,
applies force to a moveable
component of the engine such as
pistons or turbine blades by
moving it over a distance.

9. How does a combustion engine
work?
● It is a motion from
gasoline is to burn the
gasoline inside an
engine.

10. How are NASCAR engines
different from street cars?
● The NASCAR
engines have more
combustion because
they go at higher
speeds.
● The street cars have
a smaller engine
because they don't
need as much fuel as
a NASCAR because
their not going at high
speeds.

11. How does nitrous oxide help engines
perform better?
● When you heat nitrous
oxide to about 570 degrees
F, it splits into oxygen and
nitrogen. So the injection of
nitrous oxide into an engine
means that more oxygen is
available during
combustion.
● More oxygen, more fuel,
allowing the engine to
produce more power.

12. Documented example of cheating in NASCAR
After the race the roof of Jimmie Johnson's
car was too low. That reduced aerodynamic
drag and lower center of gravity is an
obvious performance benefit. Behind him
second place finisher, and teammate, Kyle
Busch's car was found to have quarter-
panel heights that were too high, again and
aerodynamic advantage. When the
penalties were handed down on Tuesday
following the race NASCAR did lay out
some stiff penalties, but not stiff enough.
Jimmie Johnson lost 25 driver points, 25 car
owner points and a $35,000 fine. His crew
chief was suspended for two races. Kyle
Busch face a similar penalty, 25 points for
both driver and car owner, tow race
suspension for his crew chief and a $25,000
fine. Effectively Jimmie Johnson was
assigned third place points and allowed to
keep the lion's share of the money.