理想气体的定压比热容 cp/（kj/kg·K） 温度/℃名称 分子式－40 10 60 110 160 260 360 460 760 1200氢 H2 14.83 14.29 14.11 14.09 14.18 14.43 14.67 14.84 15.02 16.25氧 O2 0.9378 0.9169 0.9169 0.9253 0.9420 0.9797 1.013 1.043 1.097 1.147氮 N2 1.089 1.043 1.026 1.026 1.034 1.059 1.089 1.118 1.172 1.252氨 NH3 2.005 2.043 2.114 2.186 2.303 2.508 2.700 2.881 3.329 3.869一氧化碳 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 CO2 0.7997 0.8289 0.8709 0.9043 0.9546 1.030 1.097 1.147 1.243 1.340二氧化硫 SO2 0.5862 0.6071 0.6322 0.6573 0.6908 0.7411 0.7787 0.8122 0.8541 0.8960硫化氢 H2S 0.9839 0.9797 0.9964 1.013 1.051 1.118 1.176 1.235 1.361 1.524甲烷 CH4 2.077 2.189 2.336 2.466 2.675 3.031 3.383 3.689 4.568 5.355乙烷 C2H6 1.465 1.692 1.913 2.081 2.336 2.721 3.077 3.395 4.153 4.823丙烷 C3H8 1.344 1.603 1.846 2.026 2.290 2.684 3.031 3.337 4.036 4.652正丁烷 C4H10 1.361 1.612 1.846 2.022 2.282 2.663 3.002 3.295 3.965 4.555正戊烷 C5H12 1.352 1.603 1.838 2.009 2.265 2.646 2.977 3.266 3.923 4.492正已烷 C6H14 1.339 1.591 1.825 2.001 2.257 2.633 2.960 3.249 3.889 4.455正庚烷 C7H16 1.336 1.587 1.821 1.993 2.248 2.625 2.952 3.232 3.869 4.425正辛烷 C8H18 1.336 1.583 1.817 1.993 2.244 2.617 2.943 3.224 3.852 4.400整壬烷 C9H20 1.331 1.583 1.817 1.989 2.240 2.613 2.935 3.215 3.839 4.384正癸烷 C10H22 1.331 1.578 1.813 1.985 2.236 2.608 2.931 3.207 3.831 4.371环戊烷 C5H10 0.7913 1.105 1.800 1.578 1.863 2.273 2.629 2.935 3.630 4.199甲基环戊烷 C6H12 0.9295 1.231 1.499 1.687 1.964 2.361 2.705 3.002 3.663 4.216乙基环戊烷 C7H14 0.9504 1.256 1.528 1.721 1.997 2.399 2.738 3.035 3.689 4.442环己烷 C6H12 0.8499 1.181 1.469 1.679 1.976 2.412 2.784 3.107 3.831 4.371甲基环己烷 C7H14 0.9797 1.294 1.578 1.679 2.072 2.491 2.851 3.161 3.848 4.371乙基环己烷 C8H16 1.026 1.336 1.612 1.813 2.098 2.512 2.868 3.169 3.839 4.358乙烯 C2H4 1.298 1.495 1.687 1.829 2.043 2.357 2.633 2.872 3.416 3.919丙稀 C3H6 1.256 1.461 1.658 1.805 2.026 2.353 2.642 2.897 3.479 3.998丁烯-1 C4H8 1.231 1.461 1.679 1.838 2.068 2.412 2.709 2.968 3.546 4.065戊烯-1 C5H10 1.269 1.499 1.712 1.871 2.106 2.449 2.747 3.006 3.588 4.099己烯-1 C6H12 1.277 1.507 1.725 1.884 2.123 2.466 2.767 3.031 3.613 4.124庚烯-1 C7H14 1.281 1.516 1.733 1.897 2.135 2.483 2.784 3.048 3.630 4.141辛烯-1 C8H16 1.285 1.520 1.742 1.905 2.144 2.491 2.797 3.061 3.643 4.153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 C3H4 1.256 1.424 1.583 1.704 1.884 2.144 2.366 2.554 2.964 3.349乙炔 C2H2 1.566 1.654 1.750 1.825 1.943 2.114 2.252 2.366 2.579 3.872丙炔 C3H4 1.327 1.470 1.612 1.721 1.884 2.131 2.345 2.529 2.931 3.324丁炔-1 C4H6 1.277 1.453 1.624 1.750 1.938 2.219 2.458 2.667 3.123 3.555苯 C6H6 0.7536 0.9881 1.193 1.339 1.549 1.846 2.089 2.294 2.730 3.081。