(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.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter6: Thermochemistry
Section: Chapter Questions
Problem 117AE: At 298 K, the standard enthalpies of formation for C2H2(g) and C6H6(l) are 227 kJ/mol and 49 kJ/mol,...
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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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