飽和蒸汽熱焓值表.doc

附表18（續(xù)）/00.00100000.46-0.00010.00099970.97-0.0001100.001000142.490.15100.000999942.980.1509200.001001684.330.29620.001001484.800.2961400.0010077167.940.57210.0010074168.380.5719600.0010169251.560.83100.0010167251.980.8307800.0010288335.291.07500.0010286335.691.07471000.0010432419.361.30660.0010430419.741.30621200.0010601503.971.52750.0010599504.321.52701400.0010796589.301.73920.0010783589.621.73861600.383582767.26.86470.0011017675.841.94241800.404502811.76.96510.194432777.96.58642000.424872854.97.05850.205902827.36.69312200.444852897.37.14620.216862874.26.79032400.464552939.27.22950.227452919.66.88042600.484042980.87.30910.237792963.86.96502800.503363022.27.38530.247933007.37.04513000.522553063.67.45880.257933050.47.12163500.570123167.07.63190.282473157.07.29994000.617293271.17.79240.306583263.17.46384200.636083312-97.85370.316153305.67.52604400.654833354-97.91350.325683348.27.58664500.664203376.07.94280.330433369.67.61634600.673563397.27.97190.335183390.97.64564800.692263439.68.02890.344653433.87.70335000.710943482.28.08480.354103476.87.75975500.757553589.98.21980.377643585.47.89586000.804083699.68.34910.401093695.78.0259附表18（續(xù)）/00.00099873.010.00000.00099775.040.0002100.000998944.920.15070.000997946.870.1506200.001000586.680.29570.000999688.550.2952400.0010066170.150.57110.0010057171.920.5704600.0010158253.660.82960.0010149255.340.8286800.0010276377.281.07340.0010267338.871.07211000.0010420421.241.30470.0010410422.751.30311200.0010587505.731.52520.0010576507.141.52341400.0010781590.921.73660.0010768592.231.73451600.0011002677.011.94000.0010988678.191.93771800.0011256764.232.13690.0011240765.252.13422000.0011549852.932.32840.0011529853.752.32532200.0011891943.652.51620.0011867944.212.51252400.0681842823.46.22500.00122661037.32.69762600.0728282884.46.34170.00127511134.32.88292800.0771012940.16.44430.0422282855.86.08643000.0841912992.46.53710.0453012923.36.20643500.0905203114.46.74140.0519323067.46.44774000.0993523230.16.91990.0578043194.96.64464200.1027873275.46.98640.0600333243.66.71594400.1061803320.57.05050.0622163291.56.78404500.1078643343.07.08170.0632913315.26.81704600.1095403365.47.11250.0643583338.86.84944800.1128703410.17.17280.0664693385.66.91255000.1161743454.97.23140.0685523432.26.97355500.1243493566.97.37180.0736643548.07.11876000.1324273679.97.50510.0786753663.97.2553附表16(續(xù))溫度 壓力 比體積 比焓 汽化潛熱 比熵 t/p / MPa/95 0.084533 0.00103961 1.9827 397.98 2667.73 2269.7 1.2501 7.4154 100 0.101325 0.00104344 1.6736 419.06 2675.71 2256.6 1.3069 7.3545 110 0.143243 0.00105156 1.2106 461.33 2691.26 2229.9 1.4186 7.2386 120 0.198483 0.00106031 0.89219 503.76 2706.18 2202.4 1.5277 7.1297 130 0.270018 0.00106968 0.66873 546.38 2720.39 2174.0 1.6346 7.0272 140 0.361190 0.00107972 0.50900 589.21 2733.81 2144.6 1.7393 6.9302 150 0.47571 0.00109046 0.39286 632.28 2746.35? 2114-1 1.8420 6.8381 160 0.61766 0.00110193 0-30709 675.62 2757.92 2082-3 1.9429 6.7502 170 0.79147 0.00111420 0.24283 719.25 2768.42 2049.2 2.0420 6.6661 180 1.00193 0.00112732 0.19403 763.22 2777.74 2014-5 2.1396 6.5852 190 1.25417 0.00114136 0.15650 807.56 2785.80 1978-2 2.2358 6.5071 200 1.55366 0.00115641 0.12732 852.34 2792.47 1940.1 2.3307 6.4312 210 1.90617 0.00117258 0.10438 897.62 2797.65 1900.0 2.4245 6.3571 220 2.31783 0.00119000 0.086157 943.46 2801.20 857.7 2.5175 6.2846 230 2.79505 0.00120882 0.071553 989.95 2803.00 813.0 2.6096 6.2130 240 3.34459 0.00122922 0.05&-743 1037.2 2802.88 765.7 2.7013 6.1422 250 3.97351 0.00125145 0.050112 1085.3 2800.66 715-4 2.7926 6.0716 260 4.68923 0.00127579 0.042195 1134.3 2796.14 661.8 2.8837 6.0007 270 5.49956 0.00130262 0.035637 1184.5 2789.05 604.5 2.9751 5.9292 本表引自嚴(yán)家、余曉福編著水和水蒸汽熱力性質(zhì)圖表，高等教育出版社，1995液體中分子的平均距離比氣體中小得多。汽化時(shí)分子平均距離加大、體積急劇增大，需克服分子間引力并反抗大氣壓力作功。因此，汽化要吸熱。單位質(zhì)量液體轉(zhuǎn)變?yōu)橥瑴囟日魵鈺r(shí)吸收的熱量稱(chēng)為汽化潛熱，簡(jiǎn)稱(chēng)汽化熱。汽化熱隨溫度升高而減小，因?yàn)樵谳^高溫度下液體分子具有較大動(dòng)能，液相與氣相差別減小。在臨界溫度下，物質(zhì)處于臨界態(tài)，氣相與液相差別消失，汽化熱為零。汽化有蒸發(fā)和沸騰兩種形式。焓是汽體的一個(gè)重要狀態(tài)參數(shù)。焓的物理意義為：在某一狀態(tài)下氣體所具有的總能量，它等于內(nèi)能和壓力勢(shì)能之和。焓用符號(hào)i表示。 熵是熱力學(xué)中的一個(gè)導(dǎo)出參數(shù)。熵的微小