Equilibrium, Enthalpy And Entropy Worksheet Page 3
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5Chemistry 12
Unit 2 - Chemical Equilibrium
17.
For each of the following, decide whether the reactants or the products have greater entropy:
a)
I
I
The ________________________ have greater entropy.
2(s)
2(g)
b)
4PH
P
+ 6H
3(g)
4(g)
2(g)
The ___________________________________________have greater entropy.
c)
NH
NH
3(g)
3(aq)
The ____________________________________________have greater entropy.
18.
When the two tendencies oppose each other (one favours reactants, the other favours
products), the reaction will
Processes in which both the tendency toward minimum enthalpy and toward maximum
entropy favour the products, will
Processes in which both the tendency toward minimum enthalpy and toward maximum
entropy favour the reactants, will
19.
For each of the following reactions decide which has minimum enthalpy (
),
reactants or products
which has maximum entropy (
), and if the reactants are mixed, what will
reactants or products
happen? (
).
go to completion/ reach a state of equilibrium/not occur at all
a) 4HCl
+ O
2H
O
+ 2Cl
+ 114.4 kJ
(g)
2(g)
2
(g)
2(g)
The ___________________________________ have minimum enthalpy.
The ___________________________________ have maximum entropy.
If HCl + O
are put together, what should happen?(
go to completion/ reach a state of
2
)
equilibrium/not occur at all
___________________________________________________________________
b)
CO
+ H
CO
+ H
O
; ∆H = 42.6 kJ
2(g)
2(g)
(g)
2
(g)
The ___________________________________ have minimum enthalpy.
How does the entropy of the reactants and products compare?___________________
If CO
+
H
were put in a flask, what should happen?(
go to completion/ reach a
2(g)
2(g)
state
)
of equilibrium/not occur at all
___________________________________________________________________
Worksheet 2-1 - Equilibrium, Enthalpy and Entropy
Page 3
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