Chemistry 12 Worksheet 2-2 - Lechatelier'S Principle - Chemical Equilibrium Worksheet Page 4
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7Chemistry 12
Unit 2 - Chemical Equilibrium
∆ ∆ H = -75.2 kJ
CO
+ 2H
CH
OH
(g)
2(g)
3
(g)
d) H
gas is removed from the system.........................
Answer ___________________
2
e) A catalyst is added..................................................
Answer ___________________
f) The total volume of the container is increased.........
Answer ___________________
10. For the reaction:
∆ ∆ H= -77 kJ
2NO
+ Cl
2NOCl
(g)
2(g)
(g)
state the optimal pressure and temperature conditions necessary for maximum
production of NOCl.(high or low?)
1. ____________________pressure
2 ___________________ temperature
11. For the reaction:
3H
2NH
+ heat
2(g)
2(g)
3(g)
¡
¢
state the optimal conditions for a high yield of ammonia (NH
). (high or low?)
3
1. _____________________pressure
2 ___________________ temperature
12. Given the following equilibrium system, state which way the equilibrium will shift when the
changes below are made:
2C
H
+ 7O
4CO
+ 6H
O
+ heat
2
6(g)
2(g)
2(g)
(g)
2
a) The volume of the container is halved.....................
Answer __________________
b) The temperature is decreased .................................
Answer __________________
c) CO
is added to the container..................................
Answer __________________
2
d) The total pressure is increased ...............................
Answer __________________
e) O
gas is removed from the system ........................
Answer __________________
2
f) Neon gas is added to increase the total pressure .....
Answer __________________
h) A catalyst is added..................................................
Answer __________________
N
+ O
+ heat
2NO
13.
Using the equilibrium:
2(g)
2(g)
(g)
Explain why nitric oxide (NO) does not generally form in the atmosphere but is formed in
the internal combustion engine of an automobile or during a lightning storm.
_________________________________________________________________
Worksheet 2-2 - LeChatelier's Principle
Page 4
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