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Calculate the mass of in gm which can be produced from at by providing 159.3 kJ of…
CHEMISTRY · Subjective · A Level · Chemistry · Energetics · Energetics
Problem
Calculate the mass of
O
2
(
g
)
\text{O}_2(\text{g})
O
2
(
g
)
in gm which can be produced from
CaO
(
s
)
\text{CaO}(\text{s})
CaO
(
s
)
at
27
∘
C
27^\circ\text{C}
2
7
∘
C
by providing 159.3 kJ of heat at constant volume & temperature (300 K) conditions. Given:
Δ
f
H
300
∘
(
CaO
,
s
)
=
−
636
kJ/mol
\Delta_f H_{300}^\circ(\text{CaO}, \text{s}) = -636 \text{ kJ/mol}
Δ
f
H
300
∘
(
CaO
,
s
)
=
−
636
kJ/mol
;
M
(
CaO
,
s
)
=
56
g/mol
M(\text{CaO}, \text{s}) = 56 \text{ g/mol}
M
(
CaO
,
s
)
=
56
g/mol
;
R
=
8.0
J/K-mol
R = 8.0 \text{ J/K-mol}
R
=
8.0
J/K-mol
Related theory
Thermodynamics
First law of thermodynamics
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