Chemistry 12 Worksheet 2-2 - Lechatelier'S Principle - Chemical Equilibrium Worksheet Page 3
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7Chemistry 12
Unit 2 - Chemical Equilibrium
f)
Sketch a graph of the relative concentrations of each species as the process outlined in
a-e of this question (
) is carried out.
on the last page
8.
Consider the following equilibrium and state which way (
) the equilibrium shifts
left or right
when each of the changes below are made.
Heat + CH
+ 2H
S
CS
+ 4H
4(g)
2
(g)
2(g)
2(g)
a) CH
gas is added ...................................................
Answer __________________
4
b) CS
gas is removed................................................
Answer __________________
2
c) H
gas is added ......................................................
Answer __________________
2
d) The total volume of the container is decreased ........
Answer __________________
e) The temperature is increased ..................................
Answer __________________
f) The total pressure is decreased ...............................
Answer __________________
g) Helium gas is added to increase the total pressure....
Answer __________________
9.
Using the following equilibrium, state what would happen to the equilibrium partial
pressure of CH
OH gas when each of the following changes are made:
3
∆ ∆ H = -75.2 kJ
CO
+ 2H
CH
OH
(g)
2(g)
3
(g)
a) CO gas is added to the container ............................
Answer __________________
b) The temperature is increased ..................................
Answer __________________
c) The total pressure of the system is increased..........
Answer __________________
Worksheet 2-2 - LeChatelier's Principle
Page 3
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