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Chemistry
Chemistry
Problem
How much of the following have their standard heat of formation zero at
298
K
298\text{K}
298
K
.
O
2
(
l
)
\text{O}_2(l)
O
2
(
l
)
,
C
graphite
\text{C}_{\text{graphite}}
C
graphite
,
P
Black
\text{P}_{\text{Black}}
P
Black
,
S
monoclinic
\text{S}_{\text{monoclinic}}
S
monoclinic
,
I
2
(
solid
)
\text{I}_2(\text{solid})
I
2
(
solid
)
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