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Given the following thermochemical reactions at 25C: 4Ca(s) + 2x4 C (graphite) ------ 4 CaC₂ 2 CaO (s) -----> 2 Ca (s) + 2/2 O, 3CaO(s) + 3 H₂O (1) -----> 3 Ca(OH)2 1C₂H₂(g) + 5x1/2 O₂(g) ---> 2 x 1 CO₂ (g) + 1 H₂O 2 CO₂ (g) ---> 2 C (g) + 2O₂(g) Calculate AH of the reaction at 25C in kJ: ΔΗ = 4 x -62.8kJ AH = 2 x 635.5kJ AH = 3 x-653.1kJ AH = 1 x-1300kJ AH = 2 x 393.5kJ

Given the following thermochemical reactions at 25C: 4Ca(s) + 2x4 C (graphite) ------ 4 CaC₂ 2 CaO (s) -----> 2 Ca (s) + 2/2 O, 3CaO(s) + 3 H₂O (1) -----> 3 Ca(OH)2 1C₂H₂(g) + 5x1/2 O₂(g) ---> 2 x 1 CO₂ (g) + 1 H₂O 2 CO₂ (g) ---> 2 C (g) + 2O₂(g) Calculate AH of the reaction at 25C in kJ: ΔΗ = 4 x -62.8kJ AH = 2 x 635.5kJ AH = 3 x-653.1kJ AH = 1 x-1300kJ AH = 2 x 393.5kJ

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Given the following thermochemical reactions at 25C: 4Ca(s) + 2x4 C (graphite) ------ 4 CaC₂ 2 CaO (s) -----> 2 Ca (s) + 2/2 O2 3CaO(s) + 3 H₂O (1) ----->3 Ca(OH)2 1C₂H₂(g) + 5x1/2 O₂(g) ---> ------> 2 CO₂ (g)---> 2C (g) + 2 O₂ (g) 2 x 1 CO₂ (g) + Calculate AH of the reaction at 25C in kJ: 1 H₂O 5 C₂H₂ (g) + 5 Ca(OH)2 (aq) -----> 5 CaC₂ (s) + 2 x 5 H₂O (1) ΔΗ = 4 x -62.8kJ ΔΗ = 2 x 635.5kJ AH = 3 x-653.1kJ AH 1 x-1300kJ ΔΗ = 2 x 393.5kJ
Transcribed Image Text:Given the following thermochemical reactions at 25C: 4Ca(s) + 2x4 C (graphite) ------ 4 CaC₂ 2 CaO (s) -----> 2 Ca (s) + 2/2 O2 3CaO(s) + 3 H₂O (1) ----->3 Ca(OH)2 1C₂H₂(g) + 5x1/2 O₂(g) ---> ------> 2 CO₂ (g)---> 2C (g) + 2 O₂ (g) 2 x 1 CO₂ (g) + Calculate AH of the reaction at 25C in kJ: 1 H₂O 5 C₂H₂ (g) + 5 Ca(OH)2 (aq) -----> 5 CaC₂ (s) + 2 x 5 H₂O (1) ΔΗ = 4 x -62.8kJ ΔΗ = 2 x 635.5kJ AH = 3 x-653.1kJ AH 1 x-1300kJ ΔΗ = 2 x 393.5kJ
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