气液平衡条件下的空气性质
空气在沸腾和凝结曲线(温度和压力在三点和临界点之间)上的变化特性。包括空气相图。
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在标准条件下，空气是多种气体的混合物。然而，在低温和高压下，气体混合物变成液体。空气相图显示了随着温度和压力变化的相行为。三相点与临界点之间的曲线表示空气沸点随压力的变化。
关键的一点:压力-温度曲线的终点，表示液体和蒸汽共存的条件。在较高的温度下，气体不能仅靠压力液化。在临界点，由临界温度T定义c和临界压力Pc时，相边界消失。
空气临界温度:132.63 K = -140.52°C = -220.94°F
空气临界压力:37.363 atm = 37.858 bar = 3.7858 MPa (MN/m2) = 549.08 psi (=lbf/2)
三相点:一种物质的三相(气体、液体和固体)在热力学平衡中共存时的温度和压力
空气三点压力:0.05196 atm = 0.05265 bar = 5265 Pa = 0.7636 psi (=lbf/2)
空气三点温度:59.75 K = -213.40°C = -352.12°F
下图为热物性沿空气沸腾和凝结曲线的变化情况:蒸汽压力，密度，粘度，热容，热导率．
参见的属性空气在变化温度和压力:不同温度下的密度和比重，密度在不同压力下，气体在空气中的扩散系数，普朗特数，不同温度下的比热而且变压比热，热导率，热扩散率,标准条件下空气热物理性质而且组成和分子量，
空气相图:
下图显示了空气性质沿沸腾和凝结曲线的变化(如上图所示)- SI单位:
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空气沿沸腾和凝结曲线的性质- SI单位:
适用于具有热导率、动态和运动粘度的全表旋转屏幕!
| 温度 | 压力 | 密度 | 热容 CV |
热容 CP |
热 导电率 |
动态 粘度 |
运动 粘度 |
||
| [K] | (°C) | (巴拉) | (g / l), (公斤/米3.］ |
(焦每千克K) | (焦每千克K) | (mW / m K) | [kcal(IT)/(h m K)] | (μPa年代) | (cSt), [m2/ s * 10－6］ |
| 液体 | |||||||||
| 59.75 | -213.40 | 0.05265 | 957.6 | 1.174 | 1.901 | 171.4 | 0.1474 | 376.6 | 0.3933 |
| 65 | -208.2 | 0.1432 | 935.9 | 1.118 | 1.902 | 162.9 | 0.1401 | 292.4 | 0.3124 |
| 70 | -203.2 | 0.31908 | 914.6 | 1.102 | 1.908 | 154.7 | 0.1330 | 234.8 | 0.2567 |
| 75 | -198.2 | 0.63326 | 892.7 | 1.072 | 1.919 | 146.5 | 0.1260 | 192.4 | 0.2155 |
| 80 | -193.2 | 1.1462 | 870.2 | 1.045 | 1.938 | 138.2 | 0.1188 | 160.4 | 0.1843 |
| 85 | -188.2 | 1.9262 | 846.7 | 1.020 | 1.964 | 129.8 | 0.1116 | 135.8 | 0.1604 |
| 90 | -183.2 | 3.0475 | 822.2 | 0.9981 | 2.003 | 121.4 | 0.1044 | 116.4 | 0.1415 |
| 95 | -178.2 | 4.5886 | 796.2 | 0.9786 | 2.056 | 112.9 | 0.09709 | 100.7 | 0.1264 |
| One hundred. | -173.2 | 6.6313 | 768.5 | 0.9617 | 2.130 | 104.4 | 0.08978 | 87.61 | 0.1140 |
| 105 | -168.2 | 9.2606 | 738.6 | 0.9477 | 2.236 | 95.93 | 0.08249 | 76.41 | 0.1035 |
| 110 | -163.2 | 12.564 | 705.6 | 0.9373 | 2.389 | 87.55 | 0.07528 | 66.54 | 0.0943 |
| 115 | -158.2 | 16.633 | 668.5 | 0.9314 | 2.628 | 79.34 | 0.06822 | 57.57 | 0.0861 |
| 120 | -153.2 | 21.557 | 625.3 | 0.9325 | 3.048 | 71.36 | 0.06136 | 49.13 | 0.0786 |
| 125 | -148.2 | 27.427 | 571.4 | 0.9473 | 4.001 | 63.66 | 0.05474 | 40.76 | 0.0713 |
| 130 | -143.2 | 34.295 | 488.4 | 1.010 | 8.846 | 58.05 | 0.04992 | 31.07 | 0.0636 |
| 132.63 | -140.52 | 37.858 | 302.6 | 17.83 | 0.0589 | ||||
| 气体 | |||||||||
| 59.75 | -213.40 | 0.02432 | 0.1421 | 0.7183 | 1.009 | 5.294 | 0.004552 | 4.220 | 29.69 |
| 65 | -208.2 | 0.07756 | 0.4182 | 0.7219 | 1.017 | 5.844 | 0.005025 | 4.606 | 11.01 |
| 70 | -203.2 | 0.19431 | 0.9787 | 0.7275 | 1.030 | 6.376 | 0.005482 | 4.970 | 5.078 |
| 75 | -198.2 | 0.42282 | 2.006 | 0.7354 | 1.050 | 6.920 | 0.005950 | 5.333 | 2.658 |
| 80 | -193.2 | 0.82321 | 3.711 | 0.7459 | 1.078 | 7.485 | 0.006436 | 5.694 | 1.534 |
| 85 | -188.2 | 1.4665 | 6.336 | 0.7589 | 1.116 | 8.082 | 0.006949 | 6.057 | 0.9560 |
| 90 | -183.2 | 2.4320 | 10.16 | 0.7746 | 1.166 | 8.725 | 0.007502 | 6.427 | 0.6327 |
| 95 | -178.2 | 3.8047 | 15.50 | 0.7928 | 1.232 | 9.439 | 0.008116 | 6.810 | 0.4393 |
| One hundred. | -173.2 | 5.6742 | 22.77 | 0.8137 | 1.320 | 10.26 | 0.008819 | 7.215 | 0.3169 |
| 105 | -168.2 | 8.1341 | 32.49 | 0.8375 | 1.440 | 11.24 | 0.009662 | 7.659 | 0.2357 |
| 110 | -163.2 | 11.282 | 45.42 | 0.8651 | 1.614 | 12.47 | 0.01072 | 8.163 | 0.1797 |
| 115 | -158.2 | 15.223 | 62.75 | 0.8981 | 1.887 | 14.15 | 0.01216 | 8.770 | 0.1398 |
| 120 | -153.2 | 20.067 | 86.57 | 0.9399 | 2.373 | 16.64 | 0.01430 | 9.552 | 0.1103 |
| 125 | -148.2 | 25.949 | 121.5 | 0.9981 | 3.474 | 20.97 | 0.01803 | 10.68 | 0.0879 |
| 130 | -143.2 | 33.084 | 182.7 | 1.095 | 8.031 | 31.81 | 0.02735 | 12.78 | 0.0699 |
| 132.63 | -140.52 | 37.858 | 302.6 | 17.83 | 0.0589 | ||||
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空气沿沸腾和凝结曲线的特性-英制单位:
适用于具有热导率、动态和运动粘度的全表旋转屏幕!
| 温度 | 压力 | 密度 | 热容 CV |
热容 CP |
热 导电率 |
动态粘滞度 | 运动 粘度 |
|||
| [K] | (°F) | (psia) | (磅/英尺3.］ | [sl /英国《金融时报》3.］ | (Btu (IT) /磅°F) | (Btu (IT) /磅°F) | [Btu(IT)/(h ft°F)] | (磅fs / ft2 * 10 - 6] | (磅米/英尺* 10－6］ | (英国《金融时报》2/ s * 10－6］ |
| 液体 | ||||||||||
| 59.75 | -352.12 | 0.76363 | 59.79 | 1.858 | 0.2805 | 0.4541 | 0.09905 | 7.866 | 253.1 | 4.233 |
| 65 | -343.7 | 2.077 | 58.43 | 1.816 | 0.2671 | 0.4543 | 0.09413 | 6.107 | 196.5 | 3.363 |
| 70 | -334.7 | 4.6279 | 57.10 | 1.775 | 0.2632 | 0.4557 | 0.08940 | 4.904 | 157.8 | 2.763 |
| 75 | -325.7 | 9.1847 | 55.73 | 1.732 | 0.2560 | 0.4584 | 0.08464 | 4.017 | 129.3 | 2.319 |
| 80 | -316.7 | 16.624 | 54.32 | 1.688 | 0.2495 | 0.4628 | 0.07982 | 3.350 | 107.8 | 1.984 |
| 85 | -307.7 | 27.937 | 52.86 | 1.643 | 0.2437 | 0.4692 | 0.07499 | 2.836 | 91.24 | 1.726 |
| 90 | -298.7 | 44.200 | 51.33 | 1.595 | 0.2384 | 0.4783 | 0.07013 | 2.431 | 78.20 | 1.524 |
| 95 | -289.7 | 66.552 | 49.71 | 1.545 | 0.2337 | 0.4911 | 0.06524 | 2.103 | 67.65 | 1.361 |
| One hundred. | -280.7 | 96.179 | 47.98 | 1.491 | 0.2297 | 0.5088 | 0.06033 | 1.830 | 58.87 | 1.227 |
| 105 | -271.7 | 134.31 | 46.11 | 1.433 | 0.2264 | 0.5339 | 0.05543 | 1.596 | 51.35 | 1.114 |
| 110 | -262.7 | 182.23 | 44.05 | 1.369 | 0.2239 | 0.5707 | 0.05059 | 1.390 | 44.71 | 1.015 |
| 115 | -253.7 | 241.24 | 41.73 | 1.297 | 0.2225 | 0.6278 | 0.04584 | 1.202 | 38.69 | 0.927 |
| 120 | -244.7 | 312.66 | 39.04 | 1.213 | 0.2227 | 0.7279 | 0.04123 | 1.026 | 33.01 | 0.846 |
| 125 | -235.7 | 397.80 | 35.67 | 1.109 | 0.2263 | 0.9556 | 0.03678 | 0.8512 | 27.39 | 0.768 |
| 130 | -226.7 | 497.41 | 30.49 | 0.9477 | 0.2411 | 2.113 | 0.03354 | 0.6490 | 20.88 | 0.685 |
| 132.63 | -220.94 | 549.08 | 18.89 | 0.5872 | 0.3724 | 11.98 | 0.634 | |||
| 气体 | ||||||||||
| 59.75 | -352.12 | 0.3527 | 0.00887 | 0.000276 | 0.1716 | 0.2409 | 0.003059 | 0.0881 | 2.836 | 319.562 |
| 65 | -342.7 | 1.1249 | 0.02611 | 0.000811 | 0.1724 | 0.2429 | 0.003377 | 0.0962 | 3.095 | 118.544 |
| 70 | -333.7 | 2.8182 | 0.06110 | 0.001899 | 0.1738 | 0.2460 | 0.003684 | 0.1038 | 3.340 | 54.663 |
| 75 | -324.7 | 6.1325 | 0.1253 | 0.003893 | 0.1757 | 0.2508 | 0.003998 | 0.1114 | 3.583 | 28.608 |
| 80 | -315.7 | 11.940 | 0.2317 | 0.00720 | 0.1782 | 0.2574 | 0.004325 | 0.1189 | 3.826 | 16.514 |
| 85 | -306.7 | 21.270 | 0.3956 | 0.01229 | 0.1813 | 0.2665 | 0.004670 | 0.1265 | 4.070 | 10.290 |
| 90 | -297.7 | 35.273 | 0.6341 | 0.01971 | 0.1850 | 0.2785 | 0.005041 | 0.1342 | 4.319 | 6.811 |
| 95 | -288.7 | 55.183 | 0.9677 | 0.03008 | 0.1894 | 0.2942 | 0.005454 | 0.1422 | 4.576 | 4.729 |
| One hundred. | -279.7 | 82.297 | 1.421 | 0.04418 | 0.1943 | 0.3152 | 0.005926 | 0.0119 | 0.381 | 3.411 |
| 105 | -270.7 | 117.98 | 2.028 | 0.06304 | 0.2000 | 0.3440 | 0.006493 | 0.1600 | 5.146 | 2.537 |
| 110 | -261.7 | 163.63 | 2.836 | 0.08814 | 0.2066 | 0.3855 | 0.007207 | 0.1705 | 5.486 | 1.934 |
| 115 | -252.7 | 220.79 | 3.917 | 0.1218 | 0.2145 | 0.4506 | 0.008173 | 0.1832 | 5.893 | 1.504 |
| 120 | -243.7 | 291.05 | 5.405 | 0.1680 | 0.2245 | 0.5668 | 0.009612 | 0.1995 | 6.419 | 1.188 |
| 125 | -234.7 | 376.36 | 7.583 | 0.2357 | 0.2384 | 0.8298 | 0.01212 | 0.2231 | 7.177 | 0.947 |
| 130 | -225.7 | 479.84 | 11.41 | 0.3545 | 0.2616 | 1.918 | 0.01838 | 0.2668 | 8.584 | 0.753 |
| 132.63 | -220.94 | 549.08 | 18.89 | 0.5872 | 0.3724 | 11.98 | 0.634 | |||
密度单位转换器
动态粘度单位转换器
运动粘度单位转换器
压力单位转换器
比热(热容)和熵的换算单位
温度单位转换器
导热系数单位转换器
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