Ideal Gas Heat Capacity at Constant Pressure - English Units
Ideal Gas Heat Capacity at Constant Pressure - English UnitsThese tables are for the Heat Capacity of isobaric (constant pressure) ideal gasses at different tempertures. Isobaric means that the pressure is held constant as the temperature increases. This is designated as Cp in most equations in heat transfer. Units: BTU/(lb F) |
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Temperature |
-279.67F |
-189.67 F |
-99.67 F |
-9.67 F |
80.33 F |
170.33 F |
260.33 F |
350.33 F |
440.33 F |
530.33 F |
620.33 F |
Methane |
0.4954 |
0.4958 |
0.4989 |
0.5102 |
0.5327 |
0.5652 |
0.6046 |
0.6477 |
0.6924 |
0.7373 |
0.7815 |
Ethane |
0.2835 |
0.3068 |
0.3355 |
0.3730 |
0.4185 |
0.4688 |
0.5203 |
0.3321 |
0.6194 |
0.6654 |
0.7087 |
Propane |
0.2237 |
0.2643 |
0.3037 |
0.3491 |
0.4006 |
0.4550 |
0.5092 |
0.5612 |
0.6099 |
0.6552 |
0.6973 |
Butane |
- |
0.2766 |
0.3142 |
0.3569 |
0.4066 |
0.4598 |
0.5128 |
0.5636 |
0.6110 |
0.6550 |
0.6957 |
Isobutane |
- |
0.2478 |
0.2952 |
0.3449 |
0.3992 |
0.4557 |
0.5114 |
0.5642 |
0.6134 |
0.6586 |
0.7001 |
Pentane |
- |
0.2678 |
0.3097 |
0.3512 |
0.3993 |
0.4518 |
0.5050 |
0.5563 |
0.6046 |
0.6495 |
0.6912 |
Isopentane |
- |
0.2266 |
0.2814 |
0.3383 |
0.3956 |
0.4521 |
0.5066 |
0.5584 |
0.6071 |
0.6522 |
0.6940 |
Neopentane |
- |
- |
- |
- |
0.4024 |
0.4620 |
0.5174 |
0.5694 |
0.6185 |
0.6651 |
0.7095 |
Hexane |
- |
- |
0.3065 |
0.3489 |
0.3971 |
0.4497 |
0.5031 |
0.5544 |
0.6024 |
0.6467 |
0.6875 |
Heptane |
- |
- |
0.3043 |
0.3468 |
0.3956 |
0.4487 |
0.5021 |
0.5533 |
0.6009 |
0.6448 |
0.6851 |
Octane |
- |
- |
- |
0.3452 |
0.3945 |
0.4479 |
0.5013 |
0.5522 |
0.5997 |
0.6433 |
0.6833 |
Ammonia |
- |
- |
0.4797 |
0.4864 |
0.5005 |
0.5193 |
0.5414 |
0.5656 |
0.5914 |
0.6181 |
0.6455 |
Argon |
0.1243 |
0.1243 |
0.1243 |
0.1243 |
0.1243 |
0.1243 |
0.1243 |
0.1243 |
0.1243 |
0.1243 |
0.1243 |
Benzene |
- |
- |
- |
- |
0.2519 |
0.2990 |
0.3424 |
0.3824 |
0.4190 |
0.4524 |
0.4827 |
Carbon dioxide |
- |
- |
- |
0.1891 |
0.2020 |
0.2138 |
0.2243 |
0.2337 |
0.2422 |
0.2499 |
0.2569 |
Carbon monoxide |
0.2481 |
0.2482 |
0.2482 |
0.2481 |
0.2480 |
0.2480 |
0.2480 |
0.2481 |
0.2482 |
0.2483 |
0.2485 |
Cyclohexane |
- |
- |
- |
- |
0.3041 |
0.3664 |
0.4264 |
0.4844 |
0.5396 |
0.5913 |
0.6391 |
Cyclopropane |
- |
- |
- |
- |
0.3194 |
0.3777 |
0.4353 |
0.4892 |
0.5379 |
0.5813 |
0.6210 |
Deuterium |
1.7837 |
1.7445 |
1.7311 |
1.7307 |
1.7316 |
1.7323 |
1.7333 |
1.7356 |
1.7398 |
1.7462 |
1.7548 |
Ethylene |
- |
0.2866 |
0.3010 |
0.3288 |
0.3663 |
0.4084 |
0.4512 |
0.4817 |
0.5314 |
0.5675 |
0.6011 |
Temperature |
-279.67F |
-189.67 F |
-99.67 F |
-9.67 F |
80.33 F |
170.33 F |
260.33 F |
350.33 F |
440.33 F |
530.33 F |
620.33 F |
Fluorine |
0.1830 |
0.1837 |
0.1866 |
0.1914 |
0.1970 |
0.2024 |
0.2073 |
0.2116 |
0.2152 |
0.2184 |
0.2210 |
Heavy water |
- |
- |
- |
- |
0.4090 |
0.4165 |
0.4249 |
0.4338 |
0.4433 |
0.4531 |
0.4632 |
Helium |
1.2404 |
1.2404 |
1.2404 |
1.2404 |
1.2404 |
1.2404 |
1.2404 |
1.2404 |
1.2404 |
1.2404 |
1.2404 |
Hydrogen |
2.6739 |
3.0073 |
3.2316 |
3.3546 |
3.4176 |
3.4463 |
3.4568 |
3.4614 |
3.4659 |
3.4702 |
3.4716 |
Hydrogen sulfide |
- |
- |
0.2343 |
0.2368 |
0.2403 |
0.2446 |
0.2496 |
0.2552 |
0.2611 |
0.2672 |
0.2736 |
Krypton |
- |
0.0592 |
0.0592 |
0.0592 |
0.0592 |
0.0592 |
0.0592 |
0.0592 |
0.0592 |
0.0592 |
0.0592 |
Methanol |
- |
- |
0.2958 |
0.3087 |
0.3290 |
0.3552 |
0.3846 |
0.4148 |
0.4446 |
0.4732 |
0.5004 |
Neon |
0.2460 |
0.2460 |
0.2460 |
0.2460 |
0.2460 |
0.2460 |
0.2460 |
0.2460 |
0.2460 |
0.2460 |
0.2460 |
Nitrogen |
0.2481 |
0.2482 |
0.2482 |
0.2482 |
0.2483 |
0.2487 |
0.2494 |
0.2505 |
0.2522 |
0.2543 |
0.2567 |
Nitrogen trifluoride |
0.1145 |
0.1263 |
0.1439 |
0.1626 |
0.1801 |
0.1953 |
0.2081 |
0.2185 |
0.2272 |
0.2348 |
0.2419 |
Oxygen |
0.2173 |
0.2173 |
0.2174 |
0.2180 |
0.2193 |
0.2216 |
0.2247 |
0.2283 |
0.2321 |
0.2359 |
0.2396 |
Parahydrogen |
3.2024 |
3.8664 |
3.8385 |
3.6613 |
3.5435 |
3.4929 |
3.4807 |
3.4840 |
3.4907 |
3.4950 |
3.4962 |
Perfluorobutane |
- |
- |
0.1476 |
0.1717 |
0.1927 |
0.2110 |
0.2268 |
0.2403 |
0.2517 |
0.2612 |
0.2693 |
Perfluoropentane |
- |
- |
- |
0.1740 |
0.1953 |
0.2138 |
0.2298 |
0.2434 |
0.2550 |
0.2647 |
0.2728 |
Perfluoropropane |
- |
0.1200 |
0.1457 |
0.1685 |
0.1885 |
0.2061 |
0.2212 |
0.2343 |
0.2454 |
0.2548 |
0.2626 |
Propylene |
- |
0.2520 |
0.2842 |
0.3235 |
0.3672 |
0.4122 |
0.4566 |
0.4992 |
0.5396 |
0.5775 |
0.6128 |
Propyne |
- |
- |
- |
- |
0.3630 |
0.3989 |
0.4323 |
0.4633 |
0.4921 |
0.5188 |
0.5437 |
Sulfur dioxide |
- |
- |
- |
- |
0.1488 |
0.1557 |
0.1621 |
0.1679 |
0.1732 |
0.1780 |
0.1824 |
Sulfur hexafluoride |
- |
- |
- |
0.1380 |
0.1594 |
0.1767 |
0.1904 |
0.2013 |
0.2099 |
0.2169 |
0.2226 |
Toluene |
- |
- |
0.1770 |
0.2232 |
0.2710 |
0.3180 |
0.3632 |
0.4055 |
0.4444 |
0.4799 |
0.5121 |
Temperature |
-279.67F |
-189.67 F |
-99.67 F |
-9.67 F |
80.33 F |
170.33 F |
260.33 F |
350.33 F |
440.33 F |
530.33 F |
620.33 F |
Water |
- |
- |
- |
- |
0.4454 |
0.4492 |
0.4542 |
0.4603 |
0.4670 |
0.4742 |
0.4816 |
Xenon |
- |
- |
0.0378 |
0.0378 |
0.0378 |
0.0378 |
0.0378 |
0.0378 |
0.0378 |
0.0378 |
0.0378 |
R-ll |
- |
- |
0.1127 |
0.1262 |
0.1370 |
0.1458 |
0.1529 |
0.1586 |
0.1633 |
0.1671 |
0.1702 |
R-113 |
- |
- |
- |
0.1408 |
0.1553 |
0.1671 |
0.1771 |
0.1854 |
0.1924 |
0.1983 |
0.2033 |
R-114 |
- |
- |
- |
- |
0.1654 |
0.1780 |
0.1890 |
0.1984 |
0.2066 |
0.2134 |
0.2187 |
R-115 |
- |
- |
0.1304 |
0.1524 |
0.1709 |
0.1863 |
0.1990 |
0.2092 |
0.2173 |
0.2238 |
0.2289 |
R-116 |
- |
- |
0.1429 |
0.1646 |
0.1844 |
0.2017 |
0.2164 |
0.2288 |
0.2393 |
0.2482 |
0.2557 |
R-12 |
- |
0.0982 |
0.1164 |
0.1316 |
0.1444 |
0.1550 |
0.1638 |
0.1712 |
0.1772 |
0.1823 |
0.1865 |
R-123 |
- |
- |
0.1269 |
0.1450 |
0.1608 |
0.1746 |
0.1868 |
0.1975 |
0.2070 |
0.2157 |
0.2238 |
R-124 |
- |
0.1179 |
0.1380 |
0.1566 |
0.1740 |
0.1903 |
0.2059 |
0.2209 |
0.2355 |
0.2502 |
0.2649 |
R-125 |
- |
- |
0.1478 |
0.1691 |
0.1887 |
0.2068 |
0.2232 |
0.2378 |
0.2506 |
0.2617 |
0.2713 |
R-13 |
0.0823 |
0.1028 |
0.1214 |
0.1380 |
0.1526 |
0.1653 |
0.1761 |
0.1848 |
0.1916 |
0.1965 |
0.1994 |
R-134a |
- |
- |
0.1542 |
0.1779 |
0.1998 |
0.2205 |
0.2400 |
0.2586 |
0.2765 |
0.2938 |
0.3105 |
R-14 |
0.0942 |
0.1093 |
0.1280 |
0.1478 |
0.1665 |
0.1831 |
0.1968 |
0.2077 |
0.2169 |
0.2256 |
0.2361 |
R-141b |
- |
- |
0.1419 |
0.1622 |
0.1806 |
0.1974 |
0.2124 |
0.2256 |
0.2371 |
0.2469 |
0.2549 |
R-142b |
- |
0.1273 |
0.1530 |
0.1768 |
0.1987 |
0.2187 |
0.2368 |
0.2531 |
0.2674 |
0.2799 |
0.2904 |
R-143a |
- |
- |
0.1700 |
0.1973 |
0.2228 |
0.2464 |
0.2680 |
0.2875 |
0.3050 |
0.3207 |
0.3347 |
R-152a |
- |
- |
0.1903 |
0.2174 |
0.2450 |
0.2727 |
0.2997 |
0.3255 |
0.3493 |
0.3706 |
0.3888 |
R-22 |
- |
0.1113 |
0.1264 |
0.1413 |
0.1557 |
0.1693 |
0.1818 |
0.1931 |
0.2032 |
0.2120 |
0.2198 |
R-227ea |
- |
- |
- |
0.1702 |
0.1915 |
0.2106 |
0.2275 |
0.2421 |
0.2546 |
0.2648 |
0.2729 |
Temperature |
-279.67F |
-189.67 F |
-99.67 F |
-9.67 F |
80.33 F |
170.33 F |
260.33 F |
350.33 F |
440.33 F |
530.33 F |
620.33 F |
R-23 |
- |
0.1257 |
0.1406 |
0.1574 |
0.1748 |
0.1919 |
0.2081 |
0.2229 |
0.2363 |
0.2482 |
0.2588 |
R-236ea |
- |
- |
- |
0.1839 |
0.2031 |
0.2212 |
0.2380 |
0.2537 |
0.2681 |
0.2813 |
0.2933 |
R-236fa |
- |
- |
0.1579 |
0.1770 |
0.1965 |
0.2162 |
0.2362 |
0.2565 |
0.2770 |
0.2978 |
0.3190 |
R-245ca |
- |
- |
- |
0.1848 |
0.2131 |
0.2381 |
0.2597 |
0.2780 |
0.2929 |
0.3046 |
0.3128 |
R-245fa |
- |
- |
- |
0.1835 |
0.2064 |
0.2279 |
0.2481 |
0.2671 |
0.2848 |
0.3012 |
0.3163 |
R-32 |
- |
0.1592 |
0.1686 |
0.1815 |
0.1978 |
0.2164 |
0.2358 |
0.2548 |
0.2728 |
0.2896 |
0.3051 |
R-41 |
- |
- |
0.2360 |
0.2476 |
0.2646 |
0.2855 |
0.3093 |
0.3347 |
0.3603 |
0.3850 |
0.4075 |
RC318 |
- |
- |
- |
0.1673 |
0.1874 |
0.2054 |
0.2213 |
0.2352 |
0.2474 |
0.2579 |
0.2670 |
Temperature |
-279.67F |
-189.67 F |
-99.67 F |
-9.67 F |
80.33 F |
170.33 F |
260.33 F |
350.33 F |
440.33 F |
530.33 F |
620.33 F |
Tags: Ideal Gas Tables Heat Capacity