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水的饱和蒸汽压与温度对应表

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水的饱和蒸汽压与温度对应表

水在各种温度下的饱和蒸汽压

温度℃ 蒸汽压mmHg 帕斯卡Pa 温度℃ 蒸汽压mmHg 帕斯卡Pa 温度℃ 蒸汽压mmHg 帕斯卡Pa 温度℃ 蒸汽压mmHg 帕斯卡Pa

-20 0.772 102.68 11 9.84 1308.72 41 58.34 7759.2 71

-18 0.935 124.36 13 11.23 1493.59 43 64.8 8618.4 73 265.7 35338.1

-17 1.027 136.59 14 11.99 1594.67 44 68.26 9078.6 74 277.2 36867.6

-16 1.128 150.02 15 12.79 1701.07 45 71.88 9560 75 289.1 38450.3

-15 1.238 164.65 16 13.63 1812.79 46 75.65 10061 76 301.4 40086.2

-14 1.357 180.48 17 14.53 1932.49 47 79.6 10587 77 314.1 41775.3

-13 1.486 197.64 18 15.48 2058.84 48 83.71 11133 78 327.3 43530.9

-12 1.627 216.39 19 16.48 2191.84 49 88.02 11707 79 341 45353

-11 1.78 236.74 20 17.54 2332.82 50 92.51 12304 80 355.1 47228.3

-10 1.946 258.82 21 18.65 2480.45 51 79.2 10534 81 369.7 49170.1

-9 2.215 294.6 22 19.83 2637.39 52 102.1 13579 82 384.9 51191.7

-8 2.321 308.69 23 21.07 2802.31 53 107.2 14258 83 400.6 53279.8

-7 2.532 336.76 24 22.38 2976.54 54 112.5 14963 84 416.8 55434.4

-6 2.761 367.21 25 23.76 3160.08 55 118 15694 85 433.6 57668.8

-5 3.008 400.06 26 25.21 3352.93 56 123.8 16465 86 450.9 59969.7

-4 3.276 435.71 27 26.74 3556.42 57 129.8 17263 87 468.7 62337.1

-3 3.566 474.28 28 28.35 3770.55 58 136.1 18101 88 487.1 64784.3

-2 3.879 515.91 29 30.04 3995.32 59 142.6 18966 89 506.1 67311.3

-1 4.216 560.73 30 31.82 4232.06 60 149.4 19870 90 525.8 69931.4

0 4.579 609.01 31 33.7 4482.1 61 156.4 20801 91 546.1 72631.3

1 4.93 655.69 32 35.66 4742.78 62 163.8 21785 92 567 75411

2 5.29 703.57 33 37.73 5018.09 63 171.4 22796 93 588.6 78283.8

3 5.69 756.77 34 39.9 5306.7 64 179.3 23847 94 610.9 81249.7

4 6.1 811.3 35 42.18 5609.94 65 187.5 24938 95 633.9 84308.7 5 6.54 869.82 36 44.56 5926.48 66 196.1 26081 96 657.6 87460.8

6 7.01 932.33 37 47.07 6260.31 67 205 27265 97 682.1 90719.3

7 7.51 998.83 38 49.65 6603.45 68 214.2 28489 98 707.3 94070.9

8 8.05 1070.7 39 52.44 6974.52 69 223.7 29752 99 733.2 97515.6

9 8.61 1145.1 40 55.32 7357.56 70 233.7 31082 100 760 101080

10 9.21 1224.9

水的饱和蒸汽压表

温度 绝对压强 蒸汽的密度 焓 汽化热

( ℃ ) (kgf/cm

2 ) (kPa) (kg/m 3 ) 液体 蒸汽 (kcal/kg) (kJ/kg)

(kcal/kg) (kJ/kg) (kcal/kg) (kJ/kg )

0 0.0062 0.6082 0.00484 0 0 595 2491.1 595 2491.1

5 0.0089 0.8731 0.0068 5 20.94 597.3 2500.8 592.3 2479.86

10 0.0125 1.2262 0.0094 10 41.87 599.6 2510.4 598.6 2468.53

15 0.0174 1.7068 0.01283 15 62.8 602 2520.5 587 2457.7

20 0.0238 2.3346 0.01719 20 83.74 604.3 2530.1 584.3 2446.3

25 0.0323 3.1684 0.02304 25 104.67 606.6 2539.7 581.6 2435

30 0.0433 4.2474 0.03036 30 125.6 608.9 2549.3 578.9 2423.7

35 0.0573 5.6207 0.0396 35 146.54 611.2 2559 576.2 2412.4

40 0.0752 7.3766 0.05114 40 167.47 613.5 2568.6 573.5 2401.1

45 0.0977 9.5837 0.06543 45 188.41 615.7 2577.8 570.7 2389.4

50 0.1258 12.34 0.083 50 209.34 618 2587.4 568 2378.1

55 0.1605 15.743 0.1043 55 230.27 620.2 2596.7 565.2 2366.4

60 0.2031 19.923 0.1301 60 251.21 622.5 2606.3 562.5 2355.1

65 0.255 25.014 0.1611 65 272.14. 624.7 2615.5 559.7 2343.4

70 0.3177 31.164 0.1979 70 293.08 626.8 2624.3 556.8 2331.2

75 0.393 38.551 0.2416 75 314.01 629 2633.5 554 2319.5

80 0.483 47.379 0.2929 80 334.94 631.1 2642.3 551.2 2307.8 85 0.59 57.875 0.3531 85 355.88 633.2 2651.1 548.2 2295.2

90 0.715 70.136 0.4229 90 376.81 635.3 2659.9 545.3 2283.1

95 0.862 84.556 0.5039 95 397.75 637.4 2668.7 542.4 2270.9

100 1.033 101.33 0.597 100 418.68 639.4 2677 539.4 2258.4

105 1.232 120.85 0.7036 105.1 440.03 641.3 2685 536.3 2245.4

110 1.461 143.31 0.8254 110.1 460.97 643.3 2693.4 533.1 2232

115 1.724 169.11 0.9635 115.2 482.32 645.2 2701.3 530 2219

120 2.025 198.64 1.1199 120.3 503.67 647 2708.9 526.7 2205.2

125 2.367 232.19 1.296 125.4 525.02 648.8 2716.4 523.5 2291.8

130 2.755 270.25 1.494 130.5 546.38 650.6 2723.9 520.1 2177.6

135 3.192 313.11 1.715 135.6 567.73 652.3 2731 516.7 2163.3

140 3.685 361.47 1.962 140.7 589.08 653.9 2737.7 513.2 2148.7

145 4.238 415.72 2.238 145.9 610.85 655.5 2744.4 509.7 2134

150 4.855 476.24 2.543 151 632.21 657 2750.7 506 2118.5

160 6.303 618.28 3.252 161.4 675.75 659.9 2762.9 498.5 2087.1

170 8.08 792.59 4.113 171.8 719.29 662.4 2773.3 490.6 2054

180 10.23 1003.5 5.145 182.3 763.25 664.6 2782.5 482.3 2019.3

190 12.8 1255.6 6.378 192.9 807.64 666.4 2790.1 473.5 1982.4

200 15.85 1554.77 7.84 203.5 852.01 667.7 2795.5 464.2 1943.5

210 19.55 1917.72 9.567 214.3 897.23 668.6 2799.3 454.4 1902.5

220 23.66 2320.88 11.6 225.1 942.45 669 2801 443.9 1858.5

230 28.53 2798.59 13.98 236.1 988.5 668.8 2800.1 432.7 1811.6

240 34.13 3347.91 16.76 247.1 1034.56 668 2796.8 420.8 1761.8

250 40.55 3977.67 20.01 258.3 1081.45 664 2790.1 408.1 1708.6

260 47.85 4693.75 23.82 269.6 1128.76 664.2 2780.9 394.5 1651.7

270 56.11 5503.99 28.27 281.1 1176.91 661.2 2768.3 380.1 1591.4

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水在不同温度下的饱和蒸汽压

水在不同温度下的饱和蒸汽压

水在不同温度下的饱和蒸汽压

一、引言

水是地球上最常见的物质之一，也是人类生活中必不可少的资源。在自然界中，水存在于不同的状态，如液态、固态和气态。本文将重点讨论水在不同温度下的饱和蒸汽压。

二、什么是饱和蒸汽压

饱和蒸汽压是指在一定温度下，液体与其蒸气之间达到平衡时所对应的气压。当液体表面上的分子达到一定速度后，就会从表面逸出形成气态分子，这些气态分子与液体表面上的分子相互碰撞并返回液体表面，这样就形成了动态平衡。此时，液体表面上的蒸气分子数已经达到最大值，不能再增加了。此时所对应的气压就是饱和蒸汽压。

三、水在不同温度下的饱和蒸汽压

1. 0℃～100℃范围内水的饱和蒸汽压

温度（℃） 饱和蒸汽压（kPa）

0 0.611

5 0.872

10 1.228

15 1.705 20 2.338

25 3.169

30 4.244

35 5.624

40 7.381

45 9.594

50 12.352

55 15.758

60 19.806

65 24.587

70 30.193

75 36.720

80 44.272

85 52.948

90 62.949

95 74.491

100 101.325

2. 其他温度下水的饱和蒸汽压

除了0℃～100℃范围内的温度，水在其他温度下的饱和蒸汽压也可以通过公式计算得出。公式如下：

ln(P/P0) = -ΔHvap/R(1/T - 1/T0)

其中，P是所求的饱和蒸汽压，P0是标准大气压（101325Pa），ΔHvap是水的汽化热（44000J/mol），R是气体常数（8.31J/(mol·K)），T是所求的温度，T0是标准温度（298K）。

四、结论与应用

通过以上数据和公式可知，在一定温度范围内，水的饱和蒸汽压随着温度升高而增加。这个规律在工业生产中有广泛应用，如在锅炉、发动机等设备中，需要控制水的蒸汽压力以保证设备正常运行。同时，水的饱和蒸汽压也是气象学、环境科学等领域的重要参数，在大气湿度、降雨量等方面有着广泛应用。

水在不同温度下的饱和蒸气压

水在不同温度下的饱和蒸气压

__________________________________________________

1__________________________________________________ 饱和蒸（saturated vapor pressure）

在密闭条件中，在一定下，与或处于相的蒸气所具有的称为饱和蒸气压。同一在不同温度下有不同的蒸气压，并随着温度的升高而增大。不同液体饱和蒸汽压不同，溶剂的饱和蒸汽压大于溶液的饱和蒸汽压；对于同一物质，固态的饱和蒸汽压小于液态的饱和蒸汽压。例如，在30℃时，水的饱和蒸气压为4132.982Pa,为10532.438Pa。而在100℃时，水的饱和蒸气压增大到101324.72Pa,乙醇为222647.74Pa。饱和蒸气压是液体的一项重要，如液体的、液体的相对挥发度等都与之有关。

饱和蒸气压

水在不同温度下的饱和蒸气压

Saturated Water Vapor Pressures at Different

Temperatures

温度(Temperature)

t/℃ 饱和蒸气压(Saturated

water

vapor 温度(Temperature)

t/℃ 饱和蒸气压(Saturated

water

vapor 温度(Temperature)

t/℃ 饱和蒸气压(Saturated

water

vapor __________________________________________________

2__________________________________________________ pressure)

/(×10^3Pa) pressure)

/(×10^3Pa) pressure)

/(×10^3Pa)

0 0.61129 125 232.01 250 3973.6

水的饱和蒸汽压表Word版

水的饱和蒸汽压表Word版

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水的饱和蒸汽压表（-20℃至100℃）

温度℃ 压力Pa 温度℃ 压力Pa 温度℃ 压力Pa 温度℃ 压力Pa

-20 102.92 10 1227.88 40 7375.26 70 31156.88

-19 113.32 11 1311.87 41 7777.89 71 32516.75

-18 124.65 12 1402.53 42 8199.18 72 33943.27

-17 136.92 13 1497.18 43 8639.14 73 354323.12

-16 150.39 14 1598.51 44 9100.42 74 36956.3

-15 165.05 15 1705.16 45 9583.04 75 38542.81

-14 180.92 16 1817.15 46 10085.66 76 40182.65

-13 198.11 17 1937.14 47 10612.27 77 41875.81

-12 216.91 18 2063.79 48 11160.22 78 43635.64

-11 237.31 19 2197.11 49 11734.83 79 45462.12

-10 259.44 20 2338.43 50 12333.43 80 47341.93

-9 283.31 21 2486.42 51 12958.7 81 49288.4

-8 309.44 22 2646.42 52 13611.97 82 51314.87

-7 337.57 23 2809.05 53 14291.9 83 53407.99

-6 368.1 24 2983.7 54 14998.5 84 55567.78

-5 401.03 25 3167.68 55 15731.76 85 57807.55

-4 436.76 26 3361 56 16505.02 86 60113.99

饱和蒸汽压(冰~水-99℃~373℃完整版)

饱和蒸汽压(冰~水-99℃~373℃完整版)

一、冰的饱和蒸汽压温度饱和蒸气压温度饱和蒸气压 温度饱和蒸气压（℃）（Pa）（℃）（Pa）（℃）（Pa）-990.0016-660.465-3327.78-980.002-650.537-3230.9-970.0024-640.861-3134.32-960.0029-630.712-3038.11-950.0036-620.818-2942.26-940.0044-610.937-2847.85-930.0053-601.077-2751.85-920.0064-591.233-2657.32-910.0077-581.413-2563.45-900.0104-571.613-2470.12-890.0112-561.84-2377.31-880.0133-552.093-2285.31-870.016-542.373-2193.98-860.0187-532.706-20102.11-850.0227-523.066-19113.84-840.0267-513.479-18125.17-830.032-503.946-17137.43-820.0387-494.452-16150.9-810.0453-485.039-15165.43-800.0533-475.679-14181.42-790.0627-466.412-13198.62-780.0746-457.212-12217.55-770.088-448.118-11237.94-760.1026-439.118-10259.94-750.132-4210.237-9284.06-740.14-4111.49-8310.06-730.164-4012.877-7338.45-720.1906-3914.41-6368.57-710.2226-3816.116-5401.63-700.2586-3718.009-4437.22-690.2999-3620.088-3475.61-680.3479-3522.408-2517.2-670.4026-3424.967-1562.13----0610.38二、水的饱和蒸汽压温度饱和蒸气压温度饱和蒸气压温度饱和蒸气压（℃）（×103Pa）（℃）（×103Pa）（℃）（×103Pa）00.61129125232.012503973.610.65716126239.242514041.220.70605127246.662524109.630.75813128254.252534178.940.81359129262.042544249.150.8726130270.022554320.260.93537131278.22564392.271.0021132286.572574465.181.073133295.15258453991.1482134303.932594613.7101.2281135312.932604689.4111.3129136322.142614766.1121.4027137331.572624843.7131.4979138341.222634922.3141.5988139351.092645001.8151.7056140361.192655082.3161.8185141371.532665163.8171.938142382.112675246.3182.0644143392.922685329.8192.1978144403.982695414.3202.3388145415.292705499.9212.4877146426.852715586.4222.6447147438.672725674232.8104148450.752735762.7242.985149463.12745852.4253.169150475.722755943.1263.3629151488.612766035273.567152501.782776127.9283.7818153515.232786221.9294.0078154528.962796317.2304.2455155542.992806413.2314.4953156557.322816510.5324.7578157571.942826608.9335.0335158586.872836708.5345.3229159602.112846809.2355.6267160617.662856911.1365.9453161633.532867014.1376.2795162649.732877118.3386.6298163666.252887223.7396.9969164683.12897330.2407.3814165700.292907438417.784166717.832917547428.2054167735.72927657.2438.6463168753.942937768.6449.1075169772.522947881.3459.5898170791.472957995.24610.094171810.782968110.34710.62172830.472978226.84811.171173850.532988344.54911.745174870.982998463.55012.344175891.83008583.85112.97176913.033018705.45213.623177934.643028828.35314.303178956.663038952.65415.012179979.093049078.25515.7521801001.93059205.15616.5221811025.23069333.45717.3241821048.93079463.15818.15918310733089594.25919.0281841097.53099726.76019.9321851122.53109860.56120.8731861147.93119995.86221.8511871173.8312101336322.8681881200.1313102716423.9251891226.1314104106525.0221901254.2315105516626.1631911281.9316106946727.3471921310.1317108386828.5761931338.8318109846929.8521941368319111317031.1761951397.6320112797132.5491961427.8321114297233.9721971458.5322115817335.4481981489.7323117347436.9781991521.4324118897538.5632001553.6325120467640.2052011568.4326122047741.9052021619.7327123647843.6652031653.6328125257945.4872041688329126888047.3732051722.9330128528149.3242061758.4331130198251.3422071794.5332131878353.4282081831.1333133578455.5852091868.4334135288557.8152101906.2335137018660.1192111944.6336138768762.4992121983.6337140538864.9582132023.2338142328967.4962142063.4339144129070.1172152104.2340145949172.8232162145.7341147789275.6142172187.8342149649378.4942182230.5343151529481.4652192273.8344153429584.5292202317.8345155339687.6882212362.5346157279790.9452222407.8347159229894.3012232453.8348161209997.7592242500.534916320100101.322252547.935016521101104.992262595.935116825102108.772272644.635216932103112.662282694.135317138104116.672292744.235417348105120.792302795.135517561106125.032312846.735617775107129.39232289935717992108133.882332952.135818211109138.52343005.935918432110143.242353060.436018655111148.122363115.736118881112153.132373171.836219110113158.292383288.636319340114163.582393286.336419574115169.022403344.736519809116174.612413403.936620048117180.342423463.936720289118186.232433524.736820533119192.282443586.336920780120198.482453648.837021030121204.852463712.137121286122211.382473776.237221539123218.092483841.237321803124224.962493907--温度(Temperature)饱和蒸气压(Saturated water vapor pressure)