Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Ethanol - Specific Heat vs. Temperature and Pressure

Online calculators, figures and tables showing specific heat , Cp and Cv, of gasous and liquid ethanol at temperatures ranging from -25 to 325 °C (-10 to 620 °F) at atmospheric and higher pressure - 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 ethanol in a constant pressure (ΔP = 0) system.
  • I sochoric specific heat  (Cv ) is used for ethanol in a constant-volume , (= isovolumetric or isometric ) closed system.

At ambient pressure and temperature the isobaric specific heat, CP, of liquid ethanol is 2.57 [kJ/kg K] or 0.614 [Btu/lb °F] = [cal/g K], while the isochoric specific heat, CV, is 2.18 [kJ/kg K] or 0.520 [Btu/lb °F] = [cal/g K].

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

Online Liquid Ethanol Specific Heat Calculator

The calculator below can be used to estimate the specific heat of liquid ethanol at constant volum(CV ) or constant pressure(CP ) and at given temperature. For practical purpose the specific heat of liquid ethanol is constant with varying pressure up to critical point (241°C, 61.5 bara / 465°F, 892 psia).
The output specific heat is given as kJ/(kmol*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 other properties of Ethanol 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 (Heat capacity) of Air - at Constant Pressure and Varying Temperature , Air - at Constant Temperature and Varying Pressure , Ammonia , Butane , Carbon dioxide , Carbon monoxide , Ethane , Ethylene , Hydrogen , Methane , Methanol , Nitrogen , Oxygen , Propane and Water .


Ethanol Cp Cv gas liquid equlibrium C

Ethanol Cp Cv gas liquid equlibrium F


Ethanol Cp gas pressure C

Ethanol Cp gas pressure F

Ethanol Cv gas pressure C


Ethanol Cv gas pressure F

Isobaric specific heat, CP, of ethanol at given temperatures and pressure s:

For full table with Imperial units - rotate the screen!

Ethanol - Specific Heat vs. Temperature and Pressure
State Temperature Pressure Specific heat at constant pressure, CP (isobaric) Cp/Cv
[K] [°C] [°F] [MPa] [bara] [psia] [kJ/mol K] [kJ/kg K] [kWh/(kg K)] [kcal(IT)/(kg K)],
[Btu(IT)/lb °F]
[Btu(IT)/(mol*°R)] [-]
Liquid 250 -23.2 -9.7 0.000270 0.00270 0.0392 0.09361 2.032 0.000564 0.4853 0.04929 1.22
280 6.9 44.3 0.00258 0.0258 0.375 0.1083 2.351 0.000653 0.5614 0.05702 1.18
298.2 25.0 77.0 0.0080 0.080 1.16 0.1184 2.570 0.000714 0.6138 0.06234 1.18
310 36.9 98.3 0.0153 0.153 2.22 0.1252 2.719 0.000755 0.6493 0.06595 1.17
340 66.9 152 0.0635 0.635 9.22 0.1412 3.064 0.000851 0.7318 0.07432 1.19
370 96.9 206 0.2021 2.021 29.30 0.1554 3.374 0.000937 0.8058 0.08184 1.22
400 127 260 0.5245 5.245 76.07 0.1688 3.665 0.00102 0.8753 0.08890 1.26
423.9 151 303 1.000 10.00 145.0 0.1802 3.910 0.00109 0.9340 0.09486 1.31
430 157 314 1.165 11.65 169.0 0.1834 3.981 0.00111 0.9509 0.09658 1.33
460 187 368 2.292 22.92 332.4 0.2050 4.451 0.00124 1.063 0.1080 1.46
490 217 422 4.095 40.95 594.0 0.2651 5.754 0.00160 1.374 0.1396 1.86
501.4 228 443 5.000 50.00 725.2 0.3515 7.630 0.00212 1.822 0.1851 2.45
Gas 250 -23.2 -9.7 0.000270 0.00270 0.0392 0.06722 1.459 0.000405 0.3485 0.03539 1.14
280 6.9 44.3 0.00258 0.0258 0.375 0.07115 1.544 0.000429 0.3689 0.03746 1.13
298.2 25.0 77.0 0.0080 0.0800 1.16 0.07380 1.602 0.000445 0.3826 0.03886 1.13
310 36.9 98.3 0.0153 0.153 2.22 0.07546 1.638 0.000455 0.3912 0.03974 1.13
340 66.9 152 0.0635 0.635 9.22 0.08074 1.753 0.000487 0.4186 0.04251 1.13
370 96.9 206 0.2021 2.021 29.30 0.08806 1.911 0.000531 0.4565 0.04637 1.15
400 127 260 0.5245 5.245 76.07 0.09894 2.148 0.000597 0.5129 0.05210 1.18
423.9 151 303 1.000 10.00 145.0 0.1118 2.428 0.000674 0.5798 0.05889 1.24
430 157 314 1.165 11.65 169.0 0.1161 2.520 0.000700 0.6019 0.06113 1.26
460 187 368 2.292 22.92 332.4 0.1473 3.197 0.000888 0.7635 0.07755 1.43
490 217 422 4.095 40.95 594.0 0.2320 5.036 0.00140 1.203 0.1222 1.98
501.4 228 443 5.000 50.00 725.2 0.3410 7.402 0.00206 1.768 0.1796 2.75
Liquid 300 26.9 80.3 0.1 1 14.5 0.1196 2.597 0.000721 0.6202 0.06299 1.17
351.1 77.9 172 0.1 1 14.5 0.1466 3.182 0.000884 0.7599 0.07718 1.20
Gas 351.1 77.9 172 0.1 1 14.5 0.08313 1.804 0.000501 0.4310 0.04377 1.14
400 127 260 0.1 1 14.5 0.09000 1.954 0.000543 0.4666 0.04739 1.12
500 227 440 0.1 1 14.5 0.1016 2.206 0.000613 0.5268 0.05351 1.09
600 327 620 0.1 1 14.5 0.1125 2.442 0.000678 0.5834 0.05925 1.08
Liquid 300 26.9 80.3 1 10 145 0.1195 2.595 0.000721 0.6198 0.06294 1.17
400 127 260 1 10 145 0.1686 3.659 0.001016 0.8740 0.08876 1.26
423.9 151 303 1 10 145 0.1802 3.910 0.001086 0.9340 0.09486 1.31
Gas 423.9 151 303 1 10 145 0.1118 2.428 0.000674 0.5798 0.05889 1.24
500 227 440 1 10 145 0.1101 2.389 0.000664 0.5707 0.05796 1.14
600 327 620 1 10 145 0.1161 2.519 0.000700 0.6017 0.06111 1.10
Liquid 300 26.9 80.3 5 50 725 0.1192 2.588 0.000719 0.6181 0.06278 1.17
400 127 260 5 50 725 0.1666 3.616 0.00100 0.8636 0.08771 1.25
501.4 228 443 5 50 725 0.3515 7.630 0.00212 1.822 0.1851 2.45
Gas 501.4 228 443 5 50 725 0.3410 7.402 0.00206 1.768 0.1796 2.75
600 327 620 5 50 725 0.1366 2.965 0.000824 0.7082 0.07192 1.20
Liquid 300 26.9 80.3 10 100 1450 0.1189 2.580 0.000717 0.6162 0.06258 1.17
Supercritical
phase
400 127 260 10 100 1450 0.1646 3.572 0.000992 0.8532 0.08665 1.24
500 227 440 10 100 1450 0.2220 4.820 0.00134 1.151 0.1169 1.58
600 327 620 10 100 1450 0.1874 4.069 0.00113 0.9718 0.09870 1.49
Liquid 300 26.9 80.3 100 1000 14500 0.1157 2.512 0.000698 0.5999 0.06093 1.14
Supercritical
phase
400 127 260 100 1000 14500 0.1508 3.274 0.000909 0.7819 0.07941 1.17
500 227 440 100 1000 14500 0.1643 3.567 0.000991 0.8520 0.08653 1.24
600 327 620 100 1000 14500 0.1655 3.593 0.000998 0.8582 0.08716 1.32
Supercritical
phase
300 26.9 80.3 200 2000 29000 0.1150 2.495 0.000693 0.5960 0.06053 1.13
400 127 260 200 2000 29000 0.1454 3.156 0.000877 0.7538 0.07656 1.15
500 227 440 200 2000 29000 0.1562 3.391 0.000942 0.8100 0.08226 1.21
600 327 620 200 2000 29000 0.1557 3.379 0.000939 0.8070 0.08196 1.29

Isochoric specific heat, CV, of ethanol at given temperatures and pressure s:

For full table with Imperial units - rotate the screen!

Ethanol - Specific Heat vs. Temperature and Pressure
State Temperature Pressure Specific heat at constant volume,  CV (isochoric) Cp/Cv
[K] [°C] [°F] [MPa] [bara] [psia] [kJ/mol K] [kJ/kg K] [kWh/(kg K)] [kcal(IT)/(kg K)],
[Btu(IT)/lb °F]
[Btu(IT)/(mol*°R)] [-]

Liquid at
equilibrium

250 -23.2 -9.7 0.000270 0.00270 0.0392 0.07666 1.664 0.000462 0.3974 0.04036 1.22
280 6.9 44.3 0.00258 0.0258 0.375 0.09165 1.989 0.000553 0.4752 0.04826 1.18
298.2 25.0 77.0 0.0080 0.080 1.16 0.1003 2.178 0.000605 0.5202 0.05283 1.18
310 36.9 98.3 0.0153 0.153 2.22 0.1067 2.316 0.000643 0.5532 0.05618 1.17
340 66.9 152 0.0635 0.635 9.22 0.1189 2.582 0.000717 0.6166 0.06262 1.19
370 96.9 206 0.2021 2.021 29.30 0.1279 2.777 0.000771 0.6632 0.06736 1.22
400 127 260 0.5245 5.245 76.07 0.1341 2.910 0.000808 0.6950 0.07059 1.26
423.9 151 303 1.000 10.00 145.0 0.1373 2.981 0.000828 0.7119 0.07231 1.31
430 157 314 1.165 11.65 169.0 0.1380 2.995 0.000832 0.7154 0.07265 1.33
460 187 368 2.292 22.92 332.4 0.1404 3.048 0.000847 0.7280 0.07393 1.46
490 217 422 4.095 40.95 594.0 0.1423 3.090 0.000858 0.7380 0.07495 1.86
501.4 228 443 5.000 50.00 725.2 0.1434 3.113 0.000865 0.7435 0.07551 2.45
Gas at
equilibrium
250 -23.2 -9.7 0.000270 0.00270 0.0392 0.05889 1.278 0.000355 0.3053 0.03101 1.14
280 6.9 44.3 0.00258 0.0258 0.375 0.06275 1.362 0.000378 0.3253 0.03304 1.13
298.2 25.0 77.0 0.0080 0.080 1.16 0.06531 1.418 0.000394 0.3386 0.03439 1.13
310 36.9 98.3 0.0153 0.153 2.22 0.06682 1.450 0.000403 0.3464 0.03518 1.13
340 66.9 152 0.0635 0.635 9.22 0.07134 1.548 0.000430 0.3698 0.03756 1.13
370 96.9 206 0.2021 2.021 29.30 0.07684 1.668 0.000463 0.3984 0.04046 1.15
400 127 260 0.5245 5.245 76.07 0.08377 1.818 0.000505 0.4343 0.04411 1.18
423.9 151 303 1.000 10.00 145.0 0.09052 1.965 0.000546 0.4693 0.04766 1.24
430 157 314 1.165 11.65 169.0 0.09245 2.007 0.000557 0.4793 0.04868 1.26
460 187 368 2.292 22.92 332.4 0.1032 2.241 0.000622 0.5352 0.05436 1.43
490 217 422 4.095 40.95 594.0 0.1171 2.542 0.000706 0.6071 0.06165 1.98
501.4 228 443 5.000 50.00 725.2 0.1239 2.689 0.000747 0.6423 0.06524 2.75
Liquid 300 26.9 80.3 0.1 1 14.5 0.1019 2.213 0.000615 0.5285 0.05367 1.17
351.1 77.9 172 0.1 1 14.5 0.1226 2.661 0.000739 0.6357 0.06456 1.20
Gas 351.1 77.9 172 0.1 1 14.5 0.07322 1.589 0.000441 0.3796 0.03856 1.14
400 127 260 0.1 1 14.5 0.08064 1.750 0.000486 0.4181 0.04246 1.12
500 227 440 0.1 1 14.5 0.09291 2.017 0.000560 0.4817 0.04892 1.09
600 327 620 0.1 1 14.5 0.10403 2.258 0.000627 0.5393 0.05478 1.08
Liquid 300 26.9 80.3 1 10 145 0.1019 2.212 0.000614 0.5284 0.05366 1.17
400 127 260 1 10 145 0.1340 2.909 0.000808 0.6947 0.07056 1.26
423.9 151 303 1 10 145 0.1373 2.981 0.000828 0.7119 0.07231 1.31
Gas 423.9 151 303 1 10 145 0.09052 1.965 0.000546 0.4693 0.04766 1.24
500 227 440 1 10 145 0.09695 2.105 0.000585 0.5027 0.05105 1.14
600 327 620 1 10 145 0.10581 2.297 0.000638 0.5486 0.05572 1.10
Liquid 300 26.9 80.3 5 50 725 0.1019 2.211 0.000614 0.5280 0.05363 1.17
400 127 260 5 50 725 0.1336 2.900 0.000806 0.6926 0.07034 1.25
501.4 228 443 5 50 725 0.1434 3.113 0.000865 0.7435 0.07551 2.45
Gas 501.4 228 443 5 50 725 0.1239 2.689 0.000747 0.6423 0.06524 2.75
600 327 620 5 50 725 0.1142 2.479 0.000689 0.5920 0.06013 1.20
Liquid 300 26.9 80.3 10 100 1450 0.1018 2.210 0.000614 0.5277 0.05360 1.17
Supercritical
phase
400 127 260 10 100 1450 0.1331 2.890 0.000803 0.6902 0.07010 1.24
500 227 440 10 100 1450 0.1403 3.046 0.000846 0.7274 0.07388 1.58
600 327 620 10 100 1450 0.1260 2.735 0.000760 0.6532 0.06634 1.49
Liquid 300 26.9 80.3 100 1000 14500 0.1015 2.203 0.000612 0.5262 0.05344 1.14
Supercritical
phase
400 127 260 100 1000 14500 0.1290 2.800 0.000778 0.6689 0.06793 1.17
500 227 440 100 1000 14500 0.1322 2.870 0.000797 0.6854 0.06962 1.24
600 327 620 100 1000 14500 0.1258 2.730 0.000758 0.6520 0.06621 1.32
Supercritical
phase
300 26.9 80.3 200 2000 29000 0.1020 2.213 0.000615 0.5286 0.05369 1.13
400 127 260 200 2000 29000 0.1268 2.752 0.000764 0.6573 0.06676 1.15
500 227 440 200 2000 29000 0.1287 2.793 0.000776 0.6671 0.06776 1.21
600 327 620 200 2000 29000 0.1207 2.619 0.000728 0.6256 0.06353 1.29

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.

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2018). Ethanol - Specific Heat vs. Temperature and Pressure. [online] Available at: https://www.engineeringtoolbox.com/specific-heat-capacity-ethanol-Cp-Cv-isobaric-isochoric-ethyl-alcohol-d_2030.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































11.4.12

.