Given that i 2C s 20 g 2CO g AH 786 4 kJ ii H g 1 2 O g H O

Last updated: 6/30/2023

Given that i 2C s 20 g 2CO g AH 786 4 kJ ii H g 1 2 O g H O l AH 285 8 kJ iii C H g O2 g 2CO g H O l AH 1297 kJ The enthalpy of formation of ethyne C H O 224 8 kJ O 224 8 kJ O 1072 2 kJ O 571 6 kJ