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2. Given the following thermochemical equations and the corresponding enthalpy change for each reaction, calculate the heat of combustion of acetylene gas, C,H,. (1) 2C (graphite) + H, (g) (2) C(graphite) + O,(g) C,H, (g) CO, (g) H,O (1) = + 226.7 kJ AH = - 393.5 kJ = - 285.8 kJ ΔΗ (3) Н (g) + ½ O, (g) ΔΗ- 2. The equation for the reaction of acetylene is:

2. Given the following thermochemical equations and the corresponding enthalpy change for each reaction, calculate the heat of combustion of acetylene gas, C,H,. (1) 2C (graphite) + H, (g) (2) C(graphite) + O,(g) C,H, (g) CO, (g) H,O (1) = + 226.7 kJ AH = - 393.5 kJ = - 285.8 kJ ΔΗ (3) Н (g) + ½ O, (g) ΔΗ- 2. The equation for the reaction of acetylene is:

Physical Chemistry
Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter2: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 2.79E: The enthalpy of combustion of diamond is -395.4 kJ/mol. C s, dia O2 g CO2 g Determine the fH of C...
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2. Given the following thermochemical equations and the corresponding enthalpy change for each reaction, calculate the heat of combustion of acetylene gas, C,H,. (1) 2C (graphite) + H; (g) (2) C(graphite) + O,(g) (3) H, (g) + ½ 0, (g) C,H, (g) CO, (g) H,O (1) AH = + 226.7 kJ AH = - 393.5 kJ AH = - 285.8 kJ ΔΗ ΔΗ 2. The equation for the reaction of acetylene is: C,H, (g) + 2½ 0, (g) 2CO, (g) + H,O (1)
Transcribed Image Text:2. Given the following thermochemical equations and the corresponding enthalpy change for each reaction, calculate the heat of combustion of acetylene gas, C,H,. (1) 2C (graphite) + H; (g) (2) C(graphite) + O,(g) (3) H, (g) + ½ 0, (g) C,H, (g) CO, (g) H,O (1) AH = + 226.7 kJ AH = - 393.5 kJ AH = - 285.8 kJ ΔΗ ΔΗ 2. The equation for the reaction of acetylene is: C,H, (g) + 2½ 0, (g) 2CO, (g) + H,O (1)
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