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[tot] 3Li(s) + (1/2)N2(g) → Li3N(s) ΔH(tot) = ___________? [1] 2Li(s) + 2HCl(aq) → 2LiCl(aq) + H2(g) ΔH1 = –556.8 kJ [2] Li3N(s) + 3HCl(aq) → 3LiCl(aq) + NH3(g) ΔH2 = –683.6 kJ [3] N2(g) + 3H2(g)→ 2NH3(g) ΔH3 = –91.8 kJ [tot] = __×[1] __×[2] __×[3]: ____________________→________________________ ΔH(tot) = __×ΔH1 __×ΔH2 __×ΔH3 = _____________kJ

[tot] 3Li(s) + (1/2)N2(g) → Li3N(s) ΔH(tot) = ___________? [1] 2Li(s) + 2HCl(aq) → 2LiCl(aq) + H2(g) ΔH1 = –556.8 kJ [2] Li3N(s) + 3HCl(aq) → 3LiCl(aq) + NH3(g) ΔH2 = –683.6 kJ [3] N2(g) + 3H2(g)→ 2NH3(g) ΔH3 = –91.8 kJ [tot] = __×[1] __×[2] __×[3]: ____________________→________________________ ΔH(tot) = __×ΔH1 __×ΔH2 __×ΔH3 = _____________kJ

Chemistry
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
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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[tot] 3Li(s) + (1/2)N2(g) → Li3N(s) ΔH(tot) = ___________?

[1] 2Li(s) + 2HCl(aq) → 2LiCl(aq) + H2(g) ΔH1 = –556.8 kJ

[2] Li3N(s) + 3HCl(aq) → 3LiCl(aq) + NH3(g) ΔH2 = –683.6 kJ

[3] N2(g) + 3H2(g)→ 2NH3(g) ΔH3 = –91.8 kJ

[tot] = __×[1] __×[2] __×[3]:

____________________→________________________

ΔH(tot) = __×ΔH1 __×ΔH2 __×ΔH3 = _____________kJ

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