(a) Calculate the enthalpy change, ΔrH°, for the formation of 1.00 mol of strontium carbonate (the material that gives the red color in fireworks) from its elements. Sr(s) + C(s) + 3/2 O2(g) → SrCO3(s)The experimental information available isSr(s) +1/2 O2(g) → SrO(s)ΔfH°' = -592 kJ/mol-rxnSrO(s) + CO2(g) → SrCO3(s)ΔrH° = -234 kJ/mol-rxnC(graphite) + O2(g) → CO2(g)ΔfH° = -394 kJ/mol-rxn(b) Draw an energy level diagram relating the energy quantities in this problem.
(a) Calculate the enthalpy change, ΔrH°, for the formation of 1.00 mol of strontium carbonate (the material that gives the red color in fireworks) from its elements. Sr(s) + C(s) + 3/2 O2(g) → SrCO3(s)The experimental information available isSr(s) +1/2 O2(g) → SrO(s)ΔfH°' = -592 kJ/mol-rxnSrO(s) + CO2(g) → SrCO3(s)ΔrH° = -234 kJ/mol-rxnC(graphite) + O2(g) → CO2(g)ΔfH° = -394 kJ/mol-rxn(b) Draw an energy level diagram relating the energy quantities in this problem.
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Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.52QP: The decomposition of ozone, O3, to oxygen, O2, is an exothermic reaction. What is the sign of q? If...
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(a) Calculate the enthalpy change, ΔrH°, for the formation of 1.00 mol of strontium carbonate (the material that gives the red color in fireworks) from its elements. Sr(s) + C(s) + 3/2 O2(g) → SrCO3(s)
The experimental information available is
Sr(s) +1/2 O2(g) → SrO(s)
ΔfH°' = -592 kJ/mol-rxn
SrO(s) + CO2(g) → SrCO3(s)
ΔrH° = -234 kJ/mol-rxn
C(graphite) + O2(g) → CO2(g)
ΔfH° = -394 kJ/mol-rxn
(b) Draw an energy level diagram relating the energy quantities in this problem.
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