Chemistry Notebook Salazar

ultimately move the forward reaction, and the reverse reaction
will not be as preferable since there is an imbalance towards
the right.
NO2(g) + CO(g) ⇄ NO(g) + CO2(g)
13 The reaction shown above occurs inside a closed flask.
What action will shift the reaction to the left?
A pumping CO gas into the closed flask
B raising the total pressure inside the flask
C increasing the NO concentration in the flask
D venting some CO2 gas from the flask
NH4Cl(s) + heat ⇄ NH3(g) + HCl(g)
14 What kind of change will shift the reaction above to the right
to form more products?
A a decrease in total pressure
B an increase in the concentration of HCl
C an increase in the pressure of NH3
D a decrease in temperature
The only gas that is found within the reaction above is
ammonia (NH3). If the total pressure is reduced within the
reaction, the gas will consequently expand, as it is the
logical thing to happen, given the freeformed shape of
gases. In order for the reaction to counter this effect, more
gas should be formed. Nonetheless, since pressure is
going to decrease and the gas is going to be more spread
out, the reaction will move to the right to hopefully make
this enough to compensate for the uneven number of
moles to moles in the reaction-Product relationship.
15 In a sealed bottle that is half full of water, equilibrium
will be attained when water molecules
A cease to evaporate.
B begin to condense.
C are equal in number for both the liquid and the gas
phase.
D evaporate and condense at equal rates.
This is similar to water, as the goal of water is for its
water vapor temperature and pressure to match that of
its surroundings. Similarly with water in this reaction, the
condensation rate and the vaporization rate MUST equal
out to obtain equilibrium and maintain a horizontal slope.
Similarly to the world population, there is no growth if the
death rate and birth rate are equal. If the balance is
uneven with condensation and evaporation, whether there is more evaporation or more condensation,
it is not equal. Both of these rates must be equal in order to achieve equilibrium. If Option A were to
happen and the evaporation were to cease, there would be a large imbalance in the rates of
condensation and evaporation within this given reaction. Option C could not be the answer as this
reaction has no reaction has no method for controlling each and every individual product formed.
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