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Chemistry
Chemistry
Problem
If
Δ
H
f
∘
\Delta H_f^\circ
Δ
H
f
∘
of
H
2
S
(
g
)
\text{H}_2\text{S}_{(g)}
H
2
S
(
g
)
and
H
2
S
(
a
q
)
\text{H}_2\text{S}_{(aq)}
H
2
S
(
a
q
)
are
−
4.5
-4.5
−
4.5
and
−
9.5
-9.5
−
9.5
kcal. How much heat is required for the change ?
H
2
S
(
a
q
.
)
⟶
H
2
S
(
g
)
\text{H}_2\text{S}_{(aq.)} \longrightarrow \text{H}_2\text{S}_{(g)}
H
2
S
(
a
q
.
)
⟶
H
2
S
(
g
)
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