I am doing multiple ungraded practices on airbags for an upcoming quiz. This is one of the practices i have found online. Read the article i have attached and then answer the questions. Thank you :) 1. What type of reaction occurs initially with sodium azide when airbags initially deploy? 2. Write the complete, balanced reaction below. 3. What would happen if the manufacturers did not start with the correct amount of sodium azide? 4. Based on the article, what is stoichiometry? Why is it important for airbag safety? 5. Why is potassium nitrate also in airbags? 6. Write the balanced equation for the reaction between potassium nitrate and sodium below. 7. What is the point of silicon dioxide? 8. Why are careful stoichiometric calculations important for air bags and safety
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
I am doing multiple ungraded practices on airbags for an upcoming quiz. This is one of the practices i have found online. Read the article i have attached and then answer the questions. Thank you :)
1. What type of reaction occurs initially with sodium azide when airbags initially deploy?
2. Write the complete, balanced reaction below.
3. What would happen if the manufacturers did not start with the correct amount of sodium azide?
4. Based on the article, what is stoichiometry? Why is it important for airbag safety?
5. Why is potassium nitrate also in airbags?
6. Write the balanced equation for the reaction between potassium nitrate and sodium below.
7. What is the point of silicon dioxide?
8. Why are careful stoichiometric calculations important for air bags and safety
![Chemistry in Action
Air Bags and Stoichiometry
Air bags are part of the mandatory
safety systems in passenger vehicles
currently sold in the United States. An
air bag inflates upon collision and
prevents the driver or passenger from
hitting the steering wheel, dash-
board, or windshield. An air bag also
absorbs some of the force resulting
from the collision by immediately
deflating through vents when the dri-
ver or passenger hits the air bag
Air bags are amazing devices. They
must inflate within 0.04 seconds of a
collision. Because a collision cannot
not provide adequate protection.
Clearly, the stoichiometry of the
reaction is very important.
The safety of the chemical products
produced in air bags is also an impor-
reactive to be considered safe. A third
ingredient, silicon dioxide, SiO2, the
main ingredient in sand, reacts with
the sodium oxide and potassium oxide
to form a safe, stable silicate glass. As
a result, all of the harmful products
generated during the air bag inflation
are converted into safe substances.
tant consideration. Sodium azide is
highly toxic, but it is entirely con-
sumed in the decomposition reaction.
The sodium that is produced by the
sodium azide decomposition can react
explosively with water to produce
sodium hydroxide and hydrogen.
Potassium nitrate, KNO, is mixed with
the sodium azide because KNO3 can
react with the sodium metal to pro-
duce safer compounds, as shown in
the following unbalanced equation:
However, the reaction of the potassi-
um nitrate with the sodium metal also
produces nitrogen gas, which will
increase the volume of gas inside the
air bag. Careful stoichiometric calcula-
tions are needed to choose the correct
amount of reactants to yield the total
volume of nitrogen required for the air
bag to function properly.
be predicted, the inflation system
must be ready to activate at any time
during the life of the vehicle. The rapid
chemical decomposition of solid sodi-
um azide, NaN, allows the air bag to
inflate fast at any time. The decompo-
sition reaction is initiated in a car by a
small ignition induced by a collision
sensing mechanism. The nitrogen gas
produced during the reaction inflates
the air bag. Although NaN, is stable at
room temperature, it decomposes into
solid sodium and nitrogen gas at tem-
peratures above 300°C by the reac-
tion shown beloW.
KNO,(s) + Na(s)→
Question
1. Balance the equation for the
reaction of potassium nitrate
K,0(s) + Na,0(s) + N2(g)
Another chemical reaction is still
required because the potassium oxide,
K,0, and sodium oxide, Na,O, are too
and sodium.
V An air bag inflates with nitrogen in 0.04 seconds.
2NAN3(s) → 2Na(s) + 3N,(g)
An air bag has a fixed volume,
which means that the amount of gas
released has to be carefully con-
trolled. A typical air bag contains
approximately 130 g of NaN3 that
can produce 67 L of N, gas when
NaN3 decomposes. If an insufficient
amount of nitrogen were produced,
the air bag would under inflate and](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F68d096ab-ff12-4035-834d-d2bf66ef2a90%2Fb2de1f5a-8594-4a43-a608-e4105d08fb91%2Fs3maazt_processed.png&w=3840&q=75)
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