Basic Principles and Calculations in Chemical Engineering, 9th Edition

Appendix CHeats of Formation and Combustion

Table D.1 Heats of Formation and Heats of Combustion of Compounds at 25°C^*† Standard states of products for ΔH^c o are CO₂(g), H₂O(l), N₂(g), SO₂(g), and HCl(aq). To convert to Btu/lb mol, multiply by 430.6.

Compound	Formula	Mol. wt.	State	ΔH^f o (kJ/g mol)	ΔH^c o (kJ/g mol)
Acetic acid	CH3COOH	60.05	l	−486.2	−871.69
g	−919.73
Acetaldehyde	CH3CHO	40.052	g	−166.4	−1192.36
Acetone	C3H6O	58.08	aq, 200	−410.03
g	−216.69	−1821.38
Acetylene	C2H2	26.04	g	226.75	−1299.61
Ammonia	NH3	17.032	l	−67.20
g	−46.191	−382.58
Ammonium carbonate	(NH4)2CO3	96.09	c
aq	−941.86
Ammonium chloride	NH4Cl	53.50	c	−315.4
Ammonium hydroxide	NH4OH	35.05	aq	−366.5
Ammonium nitrate ...