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# Methanol - Specific Heat vs. Temperature and Pressure

## Online calculator, figures and tables showing isobaric and isochoric specific heat of methanol, CH3OH, at varying temperature - Imperial and SI Units.

Specific heat (C) is the amount of heat required to change the temperature of a mass unit of a substance by one degree.

• Isobaric specific heat (Cp ) is used for a substance in a constant pressure (ΔP = 0) system.
• I sochoric specific heat  (Cv ) is used for a substance in a constant-volume , (= isovolumetric or isometric ) closed system.

At ambient pressure and temperature the isobaric specific heat, CP, of liquid methanol is 2.53 [kJ/kg K] or 0.605 [Btu/lb °F] = [cal/g K], while the isochoric specific heat, CV, is 2.12 [kJ/kg K] or 0.506 [Btu/lb °F] = [cal/g K].

However,  the specific heat - CP and CV - will vary with temperature. This may influence on the accuracy of methanol conditioning and industrial methanol handling process calculations. When calculating mass and volume flow of methanol in heated or cooled systems with high accuracy - the specific heat should be corrected according values in the figures and tables below, or found by use of the calculator.

### Online Liquid Methanol Specific Heat Calculator

The calculator below can be used to estimate the specific heat of liquid methanol at constant volum(CV ) or constant pressure(CP ) and at given temperature. For practical purpose the specific heat of liquid methanol is constant with varying pressure up to critical point (240°C, 82.16 bara / 464°F, 1192 psia).

Note that the boiling point of methanol at atmospheric pressure is 64.7°C (148.5°F), and methanol must therefor be pressurized to be present as liquid at higher temperatures.

The output heat capacity is given as kJ/(mol*K), kJ/(kg*K), kWh/(kg*K), kcal/(kg*K), Btu(IT)/(mol*°R) and Btu(IT)/(lbm *°R)

Choose the actual unit of temperature:

See also Methanol at varying temperature and pressure: Density and specific weight and Dynamic and kinematic viscosity , and Thermophysical properties at standard conditions ,
as well as Specific heat of Air - at Constant Pressure and Varying Temperature , Air - at Constant Temperature and Varying Pressure , Ammonia , Butane , Carbon dioxide , Carbon monoxide , Ethane , Ethanol , Ethylene , Hydrogen , Methane , Nitrogen , Oxygen , Propane and Water .

Isobaric, CP, and isochoric, CV, specific heat of methanol at gas-liquid equilibrium pressure, SI and Imperial units:

Isobaric specific heat, CP, of methanol at varying temperature and pressure, SI and Imperial units:

Isochoric specific heat, CV, of methanol at varying temperature and pressure, SI and Imperial units:

Isobaric specific heat, CP, of methanol at given temperatures and pressures:

For full table with Isobaric Specific Heat Units - rotate the screen!

Methanol - Specific Heat vs. Temperature and Pressure
State Temperature Pressure Isobaric Specific Heat, CP Cp/Cv
[K] [°C] [°F] [MPa] [bara] [psia] [kJ/mol K] [kJ/kg K] [Wh/(kg K)] [kcal(IT)/(kg K)],
[Btu(IT)/lb °F]
[Btu(IT)/(mol °F)] [-]

Liquid at

equilibrium

175.61 -97.54 -143.57 1.86E-07 1.86E-06 2.70E-05 0.07039 2.197 0.6102 0.5247 0.03706 1.24
210 -63.2 -81.7 1.98E-05 1.98E-04 2.88E-03 0.07122 2.223 0.6174 0.5308 0.03750 1.25
240 -33.2 -27.7 3.63E-04 3.63E-03 0.0527 0.07314 2.283 0.6341 0.5452 0.03851 1.23
270 -3.1 26.3 3.32E-03 0.0332 0.481 0.07648 2.387 0.6630 0.5701 0.04027 1.22
298 25.0 77.0 0.0166 0.166 2.41 0.08120 2.534 0.7039 0.6053 0.04276 1.20
300 26.9 80.3 0.0187 0.187 2.71 0.08158 2.546 0.7073 0.6081 0.04296 1.20
330 56.9 134 0.0745 0.745 10.8 0.08851 2.762 0.7673 0.6597 0.04660 1.20
360 86.9 188 0.230 2.30 33.3 0.09716 3.032 0.8423 0.7243 0.05116 1.22
390 117 242 0.586 5.86 85.0 0.1078 3.363 0.9342 0.8033 0.05674 1.25
420 147 296 1.29 12.9 187 0.1213 3.787 1.052 0.9044 0.06389 1.31
450 177 350 2.54 25.4 369 0.1412 4.407 1.224 1.053 0.07435 1.43
480 207 404 4.57 45.7 663 0.1835 5.725 1.590 1.367 0.09660 1.72
495 97 207 5.98 59.8 867 0.2572 8.026 2.229 1.917 0.1354 2.29
510 237 458 7.75 77.5 1124 1.109 34.60 9.612 8.265 0.5838 8.76

Gas at

equilibrium

175.61 -97.54 -143.57 1.86E-07 1.86E-06 2.70E-05 0.04029 1.257 0.3493 0.3003 0.02121 1.26
210 -63.2 -81.7 1.98E-05 1.98E-04 2.88E-03 0.04939 1.541 0.4282 0.3682 0.02601 1.23
240 -33.2 -27.7 3.63E-04 3.63E-03 0.0527 0.06797 2.121 0.5893 0.5067 0.03579 1.21
270 -3.1 26.3 3.32E-03 0.0332 0.481 0.09300 2.902 0.8062 0.6932 0.04897 1.21
298 25.0 77.0 0.0166 0.166 2.41 0.1160 3.620 1.006 0.8647 0.06108 1.23
300 26.9 80.3 0.0187 0.187 2.71 0.1174 3.664 1.018 0.8751 0.06182 1.23
330 56.9 134 0.0745 0.745 10.8 0.1375 4.291 1.192 1.025 0.07240 1.27
360 86.9 188 0.230 2.30 33.3 0.1556 4.856 1.349 1.160 0.08193 1.33
390 117 242 0.586 5.86 85.0 0.1792 5.592 1.553 1.336 0.09434 1.43
420 147 296 1.29 12.9 187 0.2199 6.862 1.906 1.639 0.1158 1.62
450 177 350 2.54 25.4 369 0.2650 8.271 2.298 1.975 0.1395 1.86
480 207 404 4.57 45.7 663 0.2796 8.726 2.424 2.084 0.1472 2.22
495 222 431 5.98 59.8 867 0.4245 13.25 3.680 3.164 0.2235 3.37
510 237 458 7.75 77.5 1124 1.910 59.60 16.55 14.23 1.006 14.4
Liquid 200 -73.2 -99.7 0.1 1 14.5 0.07094 2.214 0.6150 0.5288 0.03736 1.25
300 26.9 80.3 0.1 1 14.5 0.08158 2.546 0.7072 0.6081 0.04296 1.20
337.3 64.15 147.47 0.1 1 14.5 0.09045 2.823 0.7841 0.6742 0.04763 1.20
Gas 337.3 64.15 147.47 0.1 1 14.5 0.1419 4.428 1.230 1.058 0.07470 1.28
400 127 260 0.1 1 14.5 0.05421 1.692 0.4699 0.4041 0.02854 1.21
500 227 440 0.1 1 14.5 0.06038 1.884 0.5234 0.4501 0.03179 1.17
600 327 620 0.1 1 14.5 0.06744 2.105 0.5847 0.5027 0.03551 1.14
Liquid 200 -73.2 -99.7 1 10 145 0.07093 2.214 0.6149 0.5287 0.03735 1.25
300 26.9 80.3 1 10 145 0.08154 2.545 0.7069 0.6078 0.04294 1.20
400 127 260 1 10 145 0.1118 3.488 0.9690 0.8331 0.05885 1.27
409.75 136.60 277.88 1 10 145 0.1162 3.627 1.008 0.8664 0.06120 1.29
Gas 409.75 136.60 277.88 1 10 145 0.2033 6.346 1.763 1.516 0.1071 1.54
500 227 440 1 10 145 0.06807 2.124 0.5901 0.5074 0.03584 1.20
600 327 620 1 10 145 0.07037 2.196 0.6100 0.5245 0.03705 1.15
Liquid 200 -73.2 -99.7 5 50 725 0.07088 2.212 0.6145 0.5284 0.03732 1.25
300 26.9 80.3 5 50 725 0.08138 2.540 0.7055 0.6066 0.04285 1.20
400 127 260 5 50 725 0.1103 3.442 0.9561 0.8221 0.05807 1.26
484.95 211.80 413.24 5 50 725 0.1984 6.191 1.720 1.479 0.1044 1.83
Gas 484.95 211.80 413.24 5 50 725 0.3226 10.07 2.797 2.405 0.1699 2.58
500 227 440 5 50 725 0.1732 5.404 1.501 1.291 0.09117 1.75
600 327 620 5 50 725 0.08749 2.730 0.7585 0.6522 0.04607 1.20
Liquid 200 -73.2 -99.7 10 100 1450 0.07082 2.210 0.6140 0.5279 0.03729 1.24
300 26.9 80.3 10 100 1450 0.08120 2.534 0.7039 0.6052 0.04275 1.20
400 127 260 10 100 1450 0.1088 3.396 0.9432 0.8110 0.05729 1.25
500 227 440 10 100 1450 0.1896 5.917 1.644 1.413 0.09983 1.76
Supercritical
phase
600 327 620 10 100 1450 0.1212 3.783 1.051 0.9036 0.06383 1.36
Liquid 200 -73.2 -99.7 100 1000 14504 0.06899 2.153 0.5981 0.5143 0.03633 1.19
300 26.9 80.3 100 1000 14504 0.07982 2.491 0.6920 0.5950 0.04203 1.18
400 127 260 100 1000 14504 0.09895 3.088 0.8578 0.7376 0.05210 1.19
500 227 440 100 1000 14504 0.12152 3.793 1.053 0.9058 0.06399 1.27
Supercritical
phase
600 327 620 100 1000 14504 0.13787 4.303 1.195 1.028 0.07260 1.32

Isochoric specific heat, CV, of methanol at given temperatures and pressures:

For full table with Isochloric Specific Heat Units - rotate the screen!

Methanol - Specific Heat vs. Temperature and Pressure
State Temperature Pressure Isochoric Specific Heat, CV
[K] [°C] [°F] [MPa] [bara] [psia] [kJ/mol K] [kJ/kg K] [Wh/(kg K)] [kcal(IT)/(kg K)],
[Btu(IT)/lb °F]
[Btu(IT)/(mol °F)]

Liquid at

equilibrium

175.61 -97.54 -143.57 1.86E-07 1.86E-06 2.70E-05 0.05673 1.770 0.4918 0.4229 0.02987
210 -63.2 -81.7 1.98E-05 1.98E-04 2.88E-03 0.05707 1.781 0.4948 0.4254 0.03005
240 -33.2 -27.7 3.63E-04 3.63E-03 0.0527 0.05928 1.850 0.5139 0.4418 0.03121
270 -3.1 26.3 3.32E-03 0.0332 0.481 0.06292 1.964 0.5454 0.4690 0.03313
298 25.0 77.0 0.0166 0.166 2.41 0.06750 2.107 0.5852 0.5032 0.03554
300 26.9 80.3 0.0187 0.187 2.71 0.06786 2.118 0.5883 0.5059 0.03573
330 56.9 134 0.0745 0.745 10.8 0.07367 2.299 0.6387 0.5492 0.03879
360 86.9 188 0.230 2.30 33.3 0.07988 2.493 0.6925 0.5954 0.04206
390 117 242 0.586 5.86 85.0 0.08619 2.690 0.7472 0.6425 0.04538
420 147 296 1.29 12.9 187 0.09251 2.887 0.8020 0.6896 0.04871
450 177 350 2.54 25.4 369 0.09903 3.091 0.8585 0.7382 0.05215
480 207 404 4.57 45.7 663 0.1067 3.329 0.9247 0.7951 0.05616
495 97 207 5.98 59.8 867 0.1125 3.511 0.9753 0.8386 0.05924
510 237 458 7.75 77.5 1124 0.1265 3.949 1.097 0.9432 0.06663

Gas at

equilibrium

175.61 -97.54 -143.57 1.86E-07 1.86E-06 2.70E-05 0.03187 0.9948 0.2763 0.2376 0.01678
210 -63.2 -81.7 1.98E-05 1.98E-04 2.88E-03 0.04010 1.252 0.3477 0.2989 0.02112
240 -33.2 -27.7 3.63E-04 3.63E-03 0.0527 0.05632 1.758 0.4883 0.4198 0.02966
270 -3.1 26.3 3.32E-03 0.0332 0.481 0.07706 2.405 0.6680 0.5744 0.04057
298 25.0 77.0 0.0166 0.166 2.41 0.09450 2.949 0.8192 0.7044 0.04976
300 26.9 80.3 0.0187 0.187 2.71 0.09558 2.983 0.8286 0.7125 0.05033
330 56.9 134 0.0745 0.745 10.8 0.1086 3.389 0.9415 0.8095 0.05718
360 86.9 188 0.230 2.30 33.3 0.1174 3.663 1.017 0.8748 0.06180
390 117 242 0.586 5.86 85.0 0.1255 3.915 1.088 0.9352 0.06606
420 147 296 1.29 12.9 187 0.1359 4.240 1.178 1.013 0.07154
450 177 350 2.54 25.4 369 0.1424 4.444 1.234 1.061 0.07497
480 207 404 4.57 45.7 663 0.1262 3.938 1.094 0.9406 0.06644
495 222 431 5.98 59.8 867 0.1261 3.935 1.093 0.9398 0.06639
510 237 458 7.75 77.5 1124 0.1326 4.138 1.149 0.9883 0.06982
Liquid 200 -73.2 -99.7 0.1 1 14.5 0.05670 1.770 0.4916 0.4227 0.02986
300 26.9 80.3 0.1 1 14.5 0.06786 2.118 0.5883 0.5059 0.03573
337.3 64.15 147.47 0.1 1 14.5 0.07516 2.346 0.6516 0.5603 0.03958
Gas 337.3 64.15 147.47 0.1 1 14.5 0.1110 3.464 0.9623 0.8274 0.05845
400 127 260 0.1 1 14.5 0.04497 1.404 0.3899 0.3352 0.02368
500 227 440 0.1 1 14.5 0.05182 1.617 0.4493 0.3863 0.02729
600 327 620 0.1 1 14.5 0.05907 1.843 0.5120 0.4403 0.03110
Liquid 200 -73.2 -99.7 1 10 145 0.05672 1.770 0.4918 0.4228 0.02987
300 26.9 80.3 1 10 145 0.06785 2.117 0.5882 0.5057 0.03573
400 127 260 1 10 145 0.08826 2.754 0.7651 0.6579 0.04647
409.75 136.60 277.88 1 10 145 0.09035 2.820 0.7832 0.6735 0.04757
Gas 409.75 136.60 277.88 1 10 145 0.1320 4.121 1.145 0.9842 0.06952
500 227 440 1 10 145 0.05668 1.769 0.4913 0.4225 0.02984
600 327 620 1 10 145 0.06134 1.914 0.5318 0.4573 0.03230
Liquid 200 -73.2 -99.7 5 50 725 0.05682 1.773 0.4926 0.4235 0.02992
300 26.9 80.3 5 50 725 0.06780 2.116 0.5877 0.5054 0.03570
400 127 260 5 50 725 0.08768 2.736 0.7601 0.6535 0.04617
484.95 211.80 413.24 5 50 725 0.1083 3.379 0.9385 0.8070 0.05701
Gas 484.95 211.80 413.24 5 50 725 0.1250 3.901 1.084 0.9317 0.06581
500 227 440 5 50 725 0.09898 3.089 0.8580 0.7378 0.05212
600 327 620 5 50 725 0.07293 2.276 0.6322 0.5436 0.03840
Liquid 200 -73.2 -99.7 10 100 1450 0.05694 1.777 0.4936 0.4244 0.02998
300 26.9 80.3 10 100 1450 0.06775 2.114 0.5873 0.5050 0.03567
400 127 260 10 100 1450 0.08709 2.718 0.7550 0.6492 0.04586
500 227 440 10 100 1450 0.1076 3.358 0.9328 0.8021 0.05666
Supercritical
phase
600 327 620 10 100 1450 0.08887 2.773 0.7704 0.6624 0.04679
Liquid 200 -73.2 -99.7 100 1000 14504 0.05783 1.805 0.5013 0.4310 0.03045
300 26.9 80.3 100 1000 14504 0.06789 2.119 0.5885 0.5061 0.03575
400 127 260 100 1000 14504 0.08282 2.585 0.7180 0.6174 0.04361
500 227 440 100 1000 14504 0.09569 2.987 0.8296 0.7133 0.05039
Supercritical
phase
600 327 620 100 1000 14504 0.1041 3.248 0.9021 0.7757 0.05479

Unit conversion:

Specific heat unit converter

british thermal unit(International table) = [Btu(IT)], degree celcius = [°C], degree fahrenheit = [°F], degree kelvin = [K], degree rankin = [°R], joule = [J], kilocalorie(International table) = [kcal(IT)], kilogram = [kg], kilojoule = [kJ], kilowatthour = [kWh], mole = [mol], pound =[lb]

K in the units can be replaced by °C, and vise versa. °R in the units can be replaced by °F, and vise versa.

• 1 Btu/(lb °F) = 1 Btu/(lb °R) = 1 kcal(IT)/(kg °C) = 1 kcal(IT)/(kg K) = 4186.8 J/(kg K) = 0.81647 kcal(IT)/(lb °F) = 1.163x10-3 kWh/(kg K)
• 1 J/(kg K) = 1 J/(kg °C) = 2.3885x10-4 kcal(IT)/(kg oC) = 2.3885x10-4 Btu/(lb °F) = 1.9501x10-4 kcal(IT)/(lb °F)
• 1 kcal(IT)/(kg °C) = 1 Btu/(lb °F) = 4186.8 J/(kg K) = 0.81647 kcal(IT)/(lb °F) = 1.163x10-3 kWh/(kg K)
• 1 kcal(IT)/(lb °F) = 1.2248 Btu/(lb °F) = 1.2248 kcal(IT)/(kg °C) = 5127.9 J/(kg K)
• 1 kJ/(kg K) = 1 kJ/(kg °C) = 1000 J/(kg K) = 1000 J/(kg °C) = 0.23885 kcal(IT)/(kg °C) = 0.23885 Btu/(lb °F) = 0.19501 kcal(IT)/(lb °F) = 2.7778x10-4 kWh/(kg K)
• 1 kWh/(kg K) = 0.85985 kcal(IT)/(kg °C) = 0.85985 Btu/(lb °F) = 3.6 kJ/(kg K)
• 1 mol of air = 28.96546 g

## Related Topics

• ### Fluid Mechanics

The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time.
• ### Material Properties

Properties of gases, fluids and solids. Densities, specific heats, viscosities and more.
• ### Thermodynamics

Work, heat and energy systems.

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## Citation

• The Engineering ToolBox (2018). Methanol - Specific Heat vs. Temperature and Pressure. [online] Available at: https://www.engineeringtoolbox.com/methanol-CH3OH-specific-heat-capacity-Cp-Cv-isobaric-isochoric-d_2103.html [Accessed Day Month Year].

Modify the access date according your visit.

7.25.9

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