理想气体定压比热容

理想气体的定压比热容cp/（kJ/kg·K）

名称分子式温度/℃

－40 10 60 110 160 260 360 460 760 1200 氢H

14.83 14.29 14.11 14.09 14.18 14.43 14.67 14.84 15.02 16.25

2

氧O

0.9378 0.9169 0.9169 0.9253 0.9420 0.9797 1.013 1.043 1.097 1.147

2

氮N

1.089 1.043 1.026 1.026 1.034 1.059 1.089 1.118 1.172 1.252

2

氨NH

2.005 2.043 2.114 2.186 2.303 2.508 2.700 2.881

3.329 3.869

3

一氧化碳CO 1.084 1.043 1.029 1.030 1.038 1.068 1.101 1.130 1.189 1.264 二氧化碳CO

0.7997 0.8289 0.8709 0.9043 0.9546 1.030 1.097 1.147 1.243 1.340

2

二氧化硫SO

0.5862 0.6071 0.6322 0.6573 0.6908 0.7411 0.7787 0.8122 0.8541 0.8960

2

硫化氢H

S 0.9839 0.9797 0.9964 1.013 1.051 1.118 1.176 1.235 1.361 1.524

2

甲烷CH

2.077 2.189 2.336 2.466 2.675

3.031 3.383 3.689

4.568

5.355

4

乙烷C

H6 1.465 1.692 1.913 2.081 2.336 2.721 3.077 3.395 4.153 4.823

2

丙烷C

H8 1.344 1.603 1.846 2.026 2.290 2.684 3.031 3.337 4.036 4.652

3

正丁烷C

H10 1.361 1.612 1.846 2.022 2.282 2.663 3.002 3.295 3.965 4.555

4

正戊烷C

H12 1.352 1.603 1.838 2.009 2.265 2.646 2.977 3.266 3.923 4.492

5

正已烷C

H14 1.339 1.591 1.825 2.001 2.257 2.633 2.960 3.249 3.889 4.455

6

正庚烷C

H16 1.336 1.587 1.821 1.993 2.248 2.625 2.952 3.232 3.869 4.425

7

正辛烷C

H18 1.336 1.583 1.817 1.993 2.244 2.617 2.943 3.224 3.852 4.400

8

整壬烷C

H20 1.331 1.583 1.817 1.989 2.240 2.613 2.935 3.215 3.839 4.384

9

正癸烷C

H22 1.331 1.578 1.813 1.985 2.236 2.608 2.931 3.207 3.831 4.371

10

环戊烷C

H100.7913 1.105 1.800 1.578 1.863 2.273 2.629 2.935 3.630 4.199

5

甲基环戊烷C

H120.9295 1.231 1.499 1.687 1.964 2.361 2.705 3.002 3.663 4.216

6

乙基环戊烷C

H140.9504 1.256 1.528 1.721 1.997 2.399 2.738 3.035 3.689 4.442

7

环己烷C

H120.8499 1.181 1.469 1.679 1.976 2.412 2.784 3.107 3.831 4.371

6

甲基环己烷C

H140.9797 1.294 1.578 1.679 2.072 2.491 2.851 3.161 3.848 4.371

7

乙基环己烷C

H16 1.026 1.336 1.612 1.813 2.098 2.512 2.868 3.169 3.839 4.358

8

乙烯C

H4 1.298 1.495 1.687 1.829 2.043 2.357 2.633 2.872 3.416 3.919

2

丙稀C

H6 1.256 1.461 1.658 1.805 2.026 2.353 2.642 2.897 3.479 3.998

3

丁烯-1 C

H8 1.231 1.461 1.679 1.838 2.068 2.412 2.709 2.968 3.546 4.065

4

戊烯-1 C

H10 1.269 1.499 1.712 1.871 2.106 2.449 2.747 3.006 3.588 4.099

5

己烯-1 C

H12 1.277 1.507 1.725 1.884 2.123 2.466 2.767 3.031 3.613 4.124

6

庚烯-1 C

H14 1.281 1.516 1.733 1.897 2.135 2.483 2.784 3.048 3.630 4.141

7

辛烯-1 C

H16 1.285 1.520 1.742 1.905 2.144 2.491 2.797 3.061 3.643 4.153

8

环戊烯0.7704 1.038 1.281 1.453 1.699 2.060 2.369 2.642 3.249 3.726 丙二烯C

H4 1.256 1.424 1.583 1.704 1.884 2.144 2.366 2.554 2.964 3.349

3

乙炔C

H2 1.566 1.654 1.750 1.825 1.943 2.114 2.252 2.366 2.579 3.872

2

丙炔C

H4 1.327 1.470 1.612 1.721 1.884 2.131 2.345 2.529 2.931 3.324

3

丁炔-1 C

H6 1.277 1.453 1.624 1.750 1.938 2.219 2.458 2.667 3.123 3.555

4

苯C

H60.7536 0.9881 1.193 1.339 1.549 1.846 2.089 2.294 2.730 3.081

6