Name
Class
Date
.
'
!)
1.
From the following
enthalpy
changes,
6.
From the following
enthalpy
changes,
C(s) +~O2(g) ~ CO(g)
LlHo = -110.5 kJ
Xe(g) + F2(g) -jo XeF2(s)
Lllio = -123 kJ
CO(g) + !O2(g) ~ CO2(g)
LlHo = -283.0 kJ
Xe(g) + 2F2(g) -jo XeF4(s)
Lllio = -262 kJ
calculate the value of LlHo for the reaction
C(s) + °2(g) ~ CO2(g).
calculate the value of ~Ho for the reaction
XeF2(s) + F2(g} --;.XeF4(s).
2.
7.
From the following
enthalpy
changes,
2P(s) + 3CI2(g) -+ 2PCI3(1)
LlHo = -640 kJ
2P(s) + SCI2(g) -+ 2PCls(s)
LlHo = -886 kJ
calculate the value of LlHo for the reaction
PCI3(1) + CI2(g) -~ PCls(s).
From
4NH3(g)
the following
+ 502(g)
enthalpy
~ 4NO(g)
changes,
+ 6H20(1)
LlHo = -1170
4NH3(g)
+ 302(g)
~ 2N2(g)
kJ
+ 6H20(1)
Lllio = -1530
kJ
calculate the value of dHo for the reaction
N2(g) + °2(g) -, 2NO(g).
3.
From the following
C2HsOH(I)
CH30CH3(1)
enthalpy
changes,
8.
+ 302(g) --t-2CO2(g) + 3H20(g)
~Ho = -1234.7 kJ
+ 302(g)
~
2CO2(g)
From the following
enthalpy
changes,
2AI(s) + ~ °2(g) -..AI203(s)
Illio = -1601 kJ
2Fe(s) + ~ °2(g) -..Fe203(s)
Illio = -821 kJ
t
+ 3H2°(g)
Lllio
= -1328.3
kJ
calculate the value of dHo for the reaction
2Al(s) + Fe203(s) -..2Fe(s) + AI203(s).
calculate the value of dHo for the reaction
C2HsOH(I) -+ CH3OCH3(1).
4.
From the following
enthalpy
changes,
9.
Cu(s) + CI2(g) --.CuCI2(s)
LlHo = -206 kJ
H202(l) ~:..H20(1) + } °2(g )
tlli°
2Cu(s) + CI2(g) --.2CuCI(s)
Illio = -136 kJ
H2(g) + }02(g)
LlHo = -286.0 kJ
From the following
enthalpy
-..H20(l)
changes,
= -94.6 kJ
calculate the value of LlHo for the reaction
CuCI2(s) + Cu(s) --.2CuCI(s).
calculate the value of LlHo for the reaction
H2(g) + H202(l) -..2H2O(l).
5.
10. From the following
From the following
enthalpy
changes,
enthalpy
changes,
H2(g) + F2(g) -jo 2HF(g)
/j,Ho = -542.2 kJ
C(s) + °2('S) -jo CO2(g)
dHo = -393.5 kJ
2H2(g) + °2(g) -jo 2H2O(I)
/j,Ho = -571.6 kJ
H2(g) + ~02(g) -jo H20(1)
dHo = -285.8 kJ
calculate the value of /j,Ho for the reaction
2F2(g) + 2H20{1) -* 4HF(g) + °2(g).
2C2H2('S) + 502(g) --4CO2(g)
+ 2H20(1)
Illio = -2598.8 kJ
calculate the value of dHo for the reaction 2C(s )
+ H2(g) --C2H2(g).
18
Chapter
12
Prentice-Hall, Inc.
a'
.