Try Out UTBK 2
Pertanyaan 1
Perhatikan data energi ikatan rata-rata berikut:
C
−
H
=
413
e
x
t
k
J
/
m
o
l
C-H = 413 ext{ kJ/mol}
C
−
H
=
413
e
x
t
k
J
/
m
o
l
C
l
−
C
l
=
242
e
x
t
k
J
/
m
o
l
Cl-Cl = 242 ext{ kJ/mol}
Cl
−
Cl
=
242
e
x
t
k
J
/
m
o
l
C
−
C
l
=
328
e
x
t
k
J
/
m
o
l
C-Cl = 328 ext{ kJ/mol}
C
−
Cl
=
328
e
x
t
k
J
/
m
o
l
H
−
C
l
=
431
e
x
t
k
J
/
m
o
l
H-Cl = 431 ext{ kJ/mol}
H
−
Cl
=
431
e
x
t
k
J
/
m
o
l
Hitunglah perubahan entalpi (
e
x
t
d
e
l
t
a
H
ext{delta } H
e
x
t
d
e
lt
a
H
) untuk reaksi klorinasi metana berikut:
C
H
4
(
g
)
+
C
l
2
(
g
)
i
g
h
t
a
r
r
o
w
C
H
3
C
l
(
g
)
+
H
C
l
(
g
)
CH_4(g) + Cl_2(g) ightarrow CH_3Cl(g) + HCl(g)
C
H
4
(
g
)
+
C
l
2
(
g
)
i
g
h
t
a
rro
wC
H
3
Cl
(
g
)
+
H
Cl
(
g
)
A
A.
−
104
e
x
t
k
J
/
m
o
l
-104 ext{ kJ/mol}
−
104
e
x
t
k
J
/
m
o
l
B
B.
−
100
e
x
t
k
J
/
m
o
l
-100 ext{ kJ/mol}
−
100
e
x
t
k
J
/
m
o
l
C
C.
+
100
e
x
t
k
J
/
m
o
l
+100 ext{ kJ/mol}
+
100
e
x
t
k
J
/
m
o
l
D
D.
+
104
e
x
t
k
J
/
m
o
l
+104 ext{ kJ/mol}
+
104
e
x
t
k
J
/
m
o
l
E
E.
−
208
e
x
t
k
J
/
m
o
l
-208 ext{ kJ/mol}
−
208
e
x
t
k
J
/
m
o
l