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¿©·¯ ¹°ÁúÀÇ ºñ¿­ (Specific heat)
[ 2017-11-11 19:51:42 ]
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pmsix
Á¶È¸¼ö: 2261        
Ãâó´Â : https://en.wikipedia.org/wiki/Heat_capacity
Table of specific heat capacities at 25 ¡ÆC (298 K) unless otherwise noted.[citation needed] Notable minima and maxima are shown in maroon
Substance Phase Isobaric
mass
heat capacity
cP
J⋅g−1⋅K−1
Isobaric
molar
heat capacity
CP,m
J⋅mol−1⋅K−1
Isochore
molar
heat capacity
CV,m
J⋅mol−1⋅K−1
Isobaric
volumetric
heat capacity

CP,v
J⋅cm−3⋅K−1
Isochore
atom-molar
heat capacity
in units of R
CV,am
atom-mol−1
Air (Sea level, dry,
0 ¡ÆC (273.15 K))
gas 1.0035 29.07 20.7643 0.001297 ~ 1.25 R
Air (typical
room conditionsA)
gas 1.012 29.19 20.85 0.00121 ~ 1.25 R
Aluminium solid 0.897 24.2 2.422 2.91 R
Ammonia liquid 4.700 80.08 3.263 3.21 R
Animal tissue
(incl. human)
[30]
mixed 3.5 3.7*
Antimony solid 0.207 25.2 1.386 3.03 R
Argon gas 0.5203 20.7862 12.4717 1.50 R
Arsenic solid 0.328 24.6 1.878 2.96 R
Beryllium solid 1.82 16.4 3.367 1.97 R
Bismuth[31] solid 0.123 25.7 1.20 3.09 R
Cadmium solid 0.231 26.02 3.13 R
Carbon dioxide CO2[26] gas 0.839* 36.94 28.46 1.14 R
Chromium solid 0.449 23.35 2.81 R
Copper solid 0.385 24.47 3.45 2.94 R
Diamond solid 0.5091 6.115 1.782 0.74 R
Ethanol liquid 2.44 112 1.925 1.50 R
Gasoline (octane) liquid 2.22 228 1.64 1.05 R
Glass[31] solid 0.84 2.1
Gold solid 0.129 25.42 2.492 3.05 R
Granite[31] solid 0.790 2.17
Graphite solid 0.710 8.53 1.534 1.03 R
Helium gas 5.1932 20.7862 12.4717 1.50 R
Hydrogen gas 14.30 28.82 1.23 R
Hydrogen sulfide H2S[26] gas 1.015* 34.60 1.05 R
Iron solid 0.412 25.09[32] 3.537 3.02 R
Lead solid 0.129 26.4 1.44 3.18 R
Lithium solid 3.58 24.8 1.912 2.98 R
Lithium at 181 ¡ÆC[33] liquid 4.379 30.33 2.242 3.65 R
Magnesium solid 1.02 24.9 1.773 2.99 R
Mercury liquid 0.1395 27.98 1.888 3.36 R
Methane at 2 ¡ÆC gas 2.191 35.69 0.85 R
Methanol[34] liquid 2.14 68.62 1.38 R
Molten salt (142–540 ¡ÆC)[35] liquid 1.56 2.62
Nitrogen gas 1.040 29.12 20.8 1.25 R
Neon gas 1.0301 20.7862 12.4717 1.50 R
Oxygen gas 0.918 29.38 21.0 1.26 R
Paraffin wax
C25H52
solid 2.5 (ave) 900 2.325 1.41 R
Polyethylene
(rotomolding grade) [36][37]
solid 2.3027
Silica (fused) solid 0.703 42.2 1.547 1.69 R
Silver[31] solid 0.233 24.9 2.44 2.99 R
Sodium solid 1.230 28.23 3.39 R
Steel solid 0.466 3.756
Tin solid 0.227 27.112 1.659 3.26 R
Titanium solid 0.523 26.060 2.6384 3.13 R
Tungsten[31] solid 0.134 24.8 2.58 2.98 R
Uranium solid 0.116 27.7 2.216 3.33 R
Water at 100 ¡ÆC (steam) gas 2.080 37.47 28.03 1.12 R
Water at 25 ¡ÆC liquid 4.1813 75.327 74.53 4.1796 3.02 R
Water at 100 ¡ÆC liquid 4.1813 75.327 74.53 4.2160 3.02 R
Water at −10 ¡ÆC (ice)[31] solid 2.05 38.09 1.938 1.53 R
Zinc[31] solid 0.387 25.2 2.76 3.03 R
Substance Phase Isobaric
mass
heat capacity
cP
J⋅g−1⋅K−1
Isobaric
molar
heat capacity
CP,m
J⋅mol−1⋅K−1
Isochore
molar
heat capacity
CV,m
J⋅mol−1⋅K−1
Isobaric
volumetric
heat capacity

CP,v
J⋅cm−3⋅K−1
Isochore
atom-molar
heat capacity
in units of R
CV,am
atom-mol−1

A Assuming an altitude of 194 metres above mean sea level (the world–wide median altitude of human habitation), an indoor temperature of 23 ¡ÆC, a dewpoint of 9 ¡ÆC (40.85% relative humidity), and 760 mm–Hg sea level–corrected barometric pressure (molar water vapor content = 1.16%).
*Derived data by calculation. This is for water-rich tissues such as brain. The whole-body average figure for mammals is approximately 2.9 J⋅cm−3⋅K−1 [38]




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