Calculate the Δ Δ H° (kJ) for the following reaction: CaC2 (s) + 2 H2O (l) → Ca(OH)2 (aq) + C2H2 (g) when the following heats of reaction are known. Ca (s) + 2 C graphite → CaC2 (s) Δ Δ H = - 62.8 kJ Ca (s) + ½ O2 (g) → CaO (s) Δ Δ H = - 635.5 kJ C2H2 (g) + 5/2 O2 (g) → 2 CO2 (g) + H2O (l) Δ Δ H = - 1301.0 kJ C graphite + O2 (g) → CO2 (g) Δ Δ H = - 393.5 kJ CaO (s) + H2O (l) → Ca(OH)2 (aq) Δ Δ H = - 653.1 kJ
Calculate the Δ Δ H° (kJ) for the following reaction: CaC2 (s) + 2 H2O (l) → Ca(OH)2 (aq) + C2H2 (g) when the following heats of reaction are known. Ca (s) + 2 C graphite → CaC2 (s) Δ Δ H = - 62.8 kJ Ca (s) + ½ O2 (g) → CaO (s) Δ Δ H = - 635.5 kJ C2H2 (g) + 5/2 O2 (g) → 2 CO2 (g) + H2O (l) Δ Δ H = - 1301.0 kJ C graphite + O2 (g) → CO2 (g) Δ Δ H = - 393.5 kJ CaO (s) + H2O (l) → Ca(OH)2 (aq) Δ Δ H = - 653.1 kJ
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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Calculate the Δ
Δ
H° (kJ) for the following reaction:
CaC2 (s) + 2 H2O (l) → Ca(OH)2 (aq) + C2H2 (g)
when the following heats of reaction are known.
Ca (s) + 2 C graphite → CaC2 (s) Δ
Δ
H = - 62.8 kJ
Ca (s) + ½ O2 (g) → CaO (s) Δ
Δ
H = - 635.5 kJ
C2H2 (g) + 5/2 O2 (g) → 2 CO2 (g) + H2O (l) Δ
Δ
H = - 1301.0 kJ
C graphite + O2 (g) → CO2 (g) Δ
Δ
H = - 393.5 kJ
CaO (s) + H2O (l) → Ca(OH)2 (aq) Δ
Δ
H = - 653.1 kJ
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