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Solid calcium carbonate decomposes on heating according to with
CHEMISTRY · Subjective · A Level · Chemistry · Energetics · Energetics
Problem
Solid calcium carbonate decomposes on heating according to
C
a
C
O
3
(
s
)
→
C
a
O
(
s
)
+
C
O
2
(
g
)
\mathrm{CaCO_3(s)\to CaO(s)+CO_2(g)}
CaC
O
3
(
s
)
→
CaO
(
s
)
+
C
O
2
(
g
)
with
Δ
H
rxn
=
+
178
kJ
mol
−
1
\Delta H_{\text{rxn}}=+178\,\text{kJ}\,\text{mol}^{-1}
Δ
H
rxn
=
+
178
kJ
mol
−
1
. Determine the heat absorbed when
250.0
g
250.0\,\text{g}
250.0
g
of
C
a
C
O
3
\mathrm{CaCO_3}
CaC
O
3
is completely decomposed.
Related theory
Stoichiometric Calculations
Thermodynamics
Types of enthalpy
Enthalpy Changes of Reactions
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