7.7: Appendix G - Properties of Various Substances

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Table G1: Properties of various ideal gases (at 300K)

Gas	Formula	R (kJ/kgK)	C_p (kJ/kgK)	C_v (kJ/kgK)	k = C_p/C_v
Air	—	0.287	1.005	0.718	1.4
Argon	Ar	0.2081	0.5203	0.3122	1.667
Butane	C₄H₁₀	0.1433	1.7164	1.5734	1.091
Carbon Dioxide	CO₂	0.1889	0.846	0.657	1.289
Carbon Monoxide	CO	0.2968	1.04	0.744	1.4
Ethane	C₂H₆	0.2765	1.7662	1.4897	1.186
Ethylene	C₂H₄	0.2964	1.5482	1.2518	1.237
Helium	He	2.0769	5.1926	3.1156	1.667
Hydrogen	H₂	4.124	14.307	10.183	1.405
Methane	CH₄	0.5182	2.2537	1.7354	1.299
Neon	Ne	0.4119	1.0299	0.6179	1.667
Nitrogen	N₂	0.2968	1.039	0.743	1.4
Octane	C₈H₁₈	0.0729	1.7113	1.6385	1.044
Oxygen	O₂	0.2598	0.918	0.658	1.395
Propane	C₃H₈	0.1885	1.6794	1.4909	1.126
Steam	H₂O	0.4615	1.8723	1.4108	1.327

Table G2: Properties of various liquids (at 300K)

Liquid	C_p (kJ/kgK)
Ammonia	4.700
Ethanol	2.440
Gasoline	2.220
Mercury	0.1395
Methanol	2.140
Water	4.181

Table G3: Properties of various solids (at 300K)

Solid	C_p (kJ/kgK)
Aluminum	0.897
Brick	0.840
Carbon, graphite	0.790
Concrete	0.880
Copper	0.385
Gold	0.129
Glass, silica	0.840
Glass, crown	0.670
Glass, flint	0.503
Glass, pyrex	0.753
Granite	0.790
Gypsum	1.090
Lead	0.129
Marble, mica	0.880
Magnesium	1.020
Sand	0.835
Silver	0.233
Soil	0.800
Steel	0.466
Tin	0.227
Tungsten	0.134
Wood	1.70
Zinc	0.387

Source: Wikipedia contributors. (May 1, 2021). Table of specific heat capacities. Wikipedia. https://en.Wikipedia.org/wiki/Table_of_specific_heat_capacities, (retrieved June 10, 2021).