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Table 6.3 Selected Standard Enthalpies of Fomation at 25°C (298 K) Formula AH; (kJ/mol) Calcium Ca(s) CaO(s) -635.1 CaCO;(s) Carbon - 1206.9 C(graphite) C(diamond) CO(g) CO-(g) CH,(g) CH,OH(1) HCN(g) CS,() Chlorine Cl(g) Cl,(g) HČI(g) Hydrogen H(g) H,(g) Nitrogen N2(g) NH3(g) NO(g) Охудen 0,(g) 0,(g) H,O(g) H,O(1) Silver Ag(s) AGCI(s) 1.9 -110.5 -393.5 -74.9 -238.6 135 87.9 121.0 -92.3 218.0 -45.9 90.3 143 -241.8 -285.8 -127.0 Sodium Na(s) Na(g) NaCl(s) 107.8 -411.1 Sulfur S(rhombic) Sg(monoclinic) SO,(g) SO-(g) 0.3 - 296.8 -396.0 ΔΗΣηΔΗ; αντι ΣηΔΗ?ο. (6.9) (reactants) where E means “sum of," and m and n are the amounts (mol) of the products and reactants given by the coefficients in the balanced equation.

Table 6.3 Selected Standard Enthalpies of Fomation at 25°C (298 K) Formula AH; (kJ/mol) Calcium Ca(s) CaO(s) -635.1 CaCO;(s) Carbon - 1206.9 C(graphite) C(diamond) CO(g) CO-(g) CH,(g) CH,OH(1) HCN(g) CS,() Chlorine Cl(g) Cl,(g) HČI(g) Hydrogen H(g) H,(g) Nitrogen N2(g) NH3(g) NO(g) Охудen 0,(g) 0,(g) H,O(g) H,O(1) Silver Ag(s) AGCI(s) 1.9 -110.5 -393.5 -74.9 -238.6 135 87.9 121.0 -92.3 218.0 -45.9 90.3 143 -241.8 -285.8 -127.0 Sodium Na(s) Na(g) NaCl(s) 107.8 -411.1 Sulfur S(rhombic) Sg(monoclinic) SO,(g) SO-(g) 0.3 - 296.8 -396.0 ΔΗΣηΔΗ; αντι ΣηΔΗ?ο. (6.9) (reactants) where E means “sum of," and m and n are the amounts (mol) of the products and reactants given by the coefficients in the balanced equation.

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Problem Nitric acid is used to make many products, including fertilizers, dyes, and explosives. The first step in its production is the oxidation of ammonia:
                                4NH3(g) + 5O2(g) → 4NO(g) 1 6H2O(g)
Calculate ΔH°rxn from ΔH°f values.
Plan We use values from as shown (or Appendix B) and apply as shown.

Table 6.3 Selected Standard Enthalpies of Fomation at 25°C (298 K) Formula AH; (kJ/mol) Calcium Ca(s) CaO(s) -635.1 CaCO;(s) Carbon - 1206.9 C(graphite) C(diamond) CO(g) CO-(g) CH,(g) CH,OH(1) HCN(g) CS,() Chlorine Cl(g) Cl,(g) HČI(g) Hydrogen H(g) H,(g) Nitrogen N2(g) NH3(g) NO(g) Охудen 0,(g) 0,(g) H,O(g) H,O(1) Silver Ag(s) AGCI(s) 1.9 -110.5 -393.5 -74.9 -238.6 135 87.9 121.0 -92.3 218.0 -45.9 90.3 143 -241.8 -285.8 -127.0 Sodium Na(s) Na(g) NaCl(s) 107.8 -411.1 Sulfur S(rhombic) Sg(monoclinic) SO,(g) SO-(g) 0.3 - 296.8 -396.0
Transcribed Image Text:Table 6.3 Selected Standard Enthalpies of Fomation at 25°C (298 K) Formula AH; (kJ/mol) Calcium Ca(s) CaO(s) -635.1 CaCO;(s) Carbon - 1206.9 C(graphite) C(diamond) CO(g) CO-(g) CH,(g) CH,OH(1) HCN(g) CS,() Chlorine Cl(g) Cl,(g) HČI(g) Hydrogen H(g) H,(g) Nitrogen N2(g) NH3(g) NO(g) Охудen 0,(g) 0,(g) H,O(g) H,O(1) Silver Ag(s) AGCI(s) 1.9 -110.5 -393.5 -74.9 -238.6 135 87.9 121.0 -92.3 218.0 -45.9 90.3 143 -241.8 -285.8 -127.0 Sodium Na(s) Na(g) NaCl(s) 107.8 -411.1 Sulfur S(rhombic) Sg(monoclinic) SO,(g) SO-(g) 0.3 - 296.8 -396.0
ΔΗΣηΔΗ; αντι ΣηΔΗ?ο. (6.9) (reactants) where E means “sum of," and m and n are the amounts (mol) of the products and reactants given by the coefficients in the balanced equation.
Transcribed Image Text:ΔΗΣηΔΗ; αντι ΣηΔΗ?ο. (6.9) (reactants) where E means “sum of," and m and n are the amounts (mol) of the products and reactants given by the coefficients in the balanced equation.
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