Consider the reaction 2 NO (g) + H2 (g) = N20 (g) + H2O (g) with AH° = + 36 kJ. In which direction, left or right, will the equilibrium shift if the following changes are made? 1. NO is added 2. the system is cooled 3. Hz is removed 4. pressure is increased 5. N20 is added 6. H2 is removed

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Chapter8: Gases
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Answer only items 1-6. Please provide a brief explanation.

LE CHATELIER'S PRINCIPLE
STRESS
SHIFT
WHY?
increase concentration of away from substance
extra concentration
a substance
needs to be used up
need to produce more of
substance to make up for
decrease concentration
towards substance
of a substance
what was removed
towards fewer moles of
increase pressure of
system
for gas: pressure increase =
volume decrease
gas
decrease pressure of
system
towards more moles of
for gas: pressure decrease
= volume increase
gas
increase temperature of away from heat/ energy
system
extra heat/ energy must
be used up
exothermic reaction is
favored
more heat/ energy needs to be
decrease temperature of towards heat energy
system
exothermic reaction is favored produced to make up for the
loss
The rates of both the forward and reverse
reactions are increased by the same
amount.
add a catalyst
NO SHIFT
Table is lifted from https://socratic.org/questions/what-is-le-chatelier-S-principle-in-
chemistry.
From the definition of Le Chatelier's principle, assess the following
instances: (Note: Use the provided table as a guide.)
Consider the reaction 2 NO (g) + H2 (g) = N2O (g) + H2O (g) with AH° = + 36 kJ. In
which direction, left or right, will the equilibrium shift if the following changes are
made?
1. NO is added
2. the system is cooled
3. Hz is removed
4. pressure is increased
5. N20 is added
6. H2 is removed
Transcribed Image Text:LE CHATELIER'S PRINCIPLE STRESS SHIFT WHY? increase concentration of away from substance extra concentration a substance needs to be used up need to produce more of substance to make up for decrease concentration towards substance of a substance what was removed towards fewer moles of increase pressure of system for gas: pressure increase = volume decrease gas decrease pressure of system towards more moles of for gas: pressure decrease = volume increase gas increase temperature of away from heat/ energy system extra heat/ energy must be used up exothermic reaction is favored more heat/ energy needs to be decrease temperature of towards heat energy system exothermic reaction is favored produced to make up for the loss The rates of both the forward and reverse reactions are increased by the same amount. add a catalyst NO SHIFT Table is lifted from https://socratic.org/questions/what-is-le-chatelier-S-principle-in- chemistry. From the definition of Le Chatelier's principle, assess the following instances: (Note: Use the provided table as a guide.) Consider the reaction 2 NO (g) + H2 (g) = N2O (g) + H2O (g) with AH° = + 36 kJ. In which direction, left or right, will the equilibrium shift if the following changes are made? 1. NO is added 2. the system is cooled 3. Hz is removed 4. pressure is increased 5. N20 is added 6. H2 is removed
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