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====== 汽化潜热 ======
===== 简介 =====
物质在温度没有改变的状况下，从液态转变到气态的过程中吸收的能量。
\\ 以水为例：
\\ 将1公斤饱和水加热，全部变为干饱和水蒸气所吸收的热量叫汽化潜热。汽化潜热随压力升高而减少。汽化潜热的单位为“千焦/千克(KJ/kg)”。\\ 
例如：在3.92兆帕绝对压力下，水的汽化潜热为1718 x 10^3焦/千克，在9.81兆帕绝对压力下时，水的汽化潜热就变为1328 x 10^3焦/千克了。
水在一个大气压（0.1MPa） 100℃时的汽化潜热为2257.2kJ/kg
===== 饱和水和饱和水蒸气热力性质表(按压力排列) =====
^压力 /MPa ^ 温度/℃  ^ 汽化潜热 kJ/kg^
|0.001     |6.9491   | 2484.1|
|0.002     |17.5403  | 2459.1|
|0.003    |24.1142  | 2443.6|
|0.004     |28.9533  | 2432.2|
|0.005     |32.8793  | 2422.8|
|0.006     |36.1663  | 2415|
|0.007     |38.9967   |2408.3|
|0.008     |41.5075   |2402.3|
|0.009     |43.7901  | 2396.8|
|0.01      |45.7988  | 2392|
|0.015    |53.9705  | 2372.3|
|0.02     |60.065   | 2357.5|
|0.025    |64.9726  | 2345.5|
|0.03     |69.1041 |  2335.3|
|0.04  |75.872 |   2318.5|
|0.05    |81.3388  | 2304.8|
|0.06   |85.9496  | 2293.1|
|0.07     |89.9556   |2282.8|
|0.08    |93.5107   |2273.6|
|0.09     |96.7121  | 2265.3|
|0.1   |99.634  |  2257.6|
|0.12    |104.81   | 2243.9|
|0.14   |109.318|   2231.8|
|0.16   |113.326  | 2220.9|
|0.18    |116.941 |2210.9|
|0.2     |120.24 | 2201.7|
|0.25   |127.444 |2181.4|
|0.3       |133.556   |2163.7|
|0.35   |138.891 |2147.9|
|0.4     |143.642  |2133.6|
|0.5    |151.867 |2108.2|
|0.6      |158.863 |2086|
|0.7  |164.983  |2066|
|0.8    |170.444  |2047.7|
|0.9    |175.389 |2030.7|
|1       |179.916 |2014.8|
|1.1    |184.1  |1999.9|
|1.2     |187.995 |1985.7|
|1.3   |191.644 |  1972.1|
|1.4     |195.078 |1959.1|
|1.5     |198.327  |1946.6|
|1.6    |201.41   |1934.6|
|1.7   |204.346  |1923|
|1.8     |207.151  |1911.7|
|1.9    |209.838  |1900.7|
|2      |212.417 |1890|
|2.2    |217.289 |1869.4|
|2.4    |221.829 |1849.8|
|2.6    |226.085 |1830.8|
|2.8   |230.096 |1812.6|
|3      |233.893 |1794.9|
|3.5    |242.597 |1752.9|
|4    |250.394 |1713.4|
|5    |263.98  |1639.5|
|6     |275.625 |1570.5|
|7     |285.869 |1504.8|
|8     |295.048 |1441.2|
|9     |303.385 |1378.9|
|10   |311.037 |1317.2|
|11    |318.118  |1255.7|
|12    |324.715 |1193.8|
|13    |330.894 |1131|
|14    |336.707 |1066.7|
|15      |342.196  |1000.2|
|16    |347.396 |930.8|
|17    |352.334 |857.1|
|18    |357.034 |777.4|
|19     |361.514  |688.9|
|20     |365.789 |585.9|
|21    |369.868 |452.4|