水比热与温度
在线计算器,数字和表格显示液态水在恒定体积或恒定压力下的比热,温度从0到360°C(32-700°F) -国际单位制和英制单位。
比热(C)所需要的热量是多少将物质的质量单位温度改变一度。
当计算水加热系统的质量和体积流量在更高的温度下比热应根据下面的图表进行修正。
比热是在不同的温度(°C和°F)和水饱和压力下给出的(在实际应用中,饱和压力与温度< 100°C(212°F)的大气压相同)。
- 我同类比热v)在一个体积恒定(=定容的或等角)封闭系统。
- 等压比热(Cp)在一个恒压(ΔP = 0)系统。
在线水比热计算器
下面的计算器可以用来计算液态水在定容或定压和给定温度下的比热。
输出比热分别为kJ/(kmol*K)、kJ/(kg*K)、kWh/(kg*K)、kcal/(kg K)、Btu(IT)/(mol*°R)、Btu(IT)/(lb)米*°R)
注意!温度必须在0-370°C, 32-700°F, 273-645 K和492-1160°R范围内才能得到有效值。
看到水而且重水-热力学性质。
另请参阅其他属性水在改变温度和压力:沸点在高压下,真空压力下的沸点,obb体育
,动态和运动粘度,焓和熵,汽化热,电离常数,pKw普通水和重水,熔点在高压下,普朗特数,气液平衡条件下的性质,饱和压力,比重,具体的体积,热导率,热扩散率而且气液平衡时的蒸汽压,
还有比热的空气——恒压变温,空气-恒温变压,氨,丁烷,二氧化碳,一氧化碳,乙烷,乙醇,乙烯,氢,甲烷,甲醇,氮,氧气而且丙烷.
液态水在0 ~ 360°C温度下的比热:
适用于等压比热全表旋转屏幕!
温度 | 等沸比热(Cv) |
等压比热(Cp) |
||||||
(°C) | [J /(摩尔K)] | (kJ / K)(公斤) | (千瓦时/ K)(公斤) | (千卡/ K)(公斤) (Btu /磅米°F] |
[J /(摩尔K)] | (kJ / K)(公斤) | (千瓦时/ K)(公斤) | (千卡/ K)(公斤) (Btu /磅米°F] |
0.01 | 75.981 | 4.2174 | 0.001172 | 1.0073 | 76.026 | 4.2199 | 0.001172 | 1.0079 |
10 | 75.505 | 4.1910 | 0.001164 | 1.0010 | 75.586 | 4.1955 | 0.001165 | 1.0021 |
20. | 74.893 | 4.1570 | 0.001155 | 0.9929 | 75.386 | 4.1844 | 0.001162 | 0.9994 |
25 | 74.548 | 4.1379 | 0.001149 | 0.9883 | 75.336 | 4.1816 | 0.001162 | 0.9988 |
30. | 74.181 | 4.1175 | 0.001144 | 0.9834 | 75.309 | 4.1801 | 0.001161 | 0.9984 |
40 | 73.392 | 4.0737 | 0.001132 | 0.9730 | 75.300 | 4.1796 | 0.001161 | 0.9983 |
50 | 72.540 | 4.0264 | 0.001118 | 0.9617 | 75.334 | 4.1815 | 0.001162 | 0.9987 |
60 | 71.644 | 3.9767 | 0.001105 | 0.9498 | 75.399 | 4.1851 | 0.001163 | 0.9996 |
70 | 70.716 | 3.9252 | 0.001090 | 0.9375 | 75.491 | 4.1902 | 0.001164 | 1.0008 |
80 | 69.774 | 3.8729 | 0.001076 | 0.9250 | 75.611 | 4.1969 | 0.001166 | 1.0024 |
90 | 68.828 | 3.8204 | 0.001061 | 0.9125 | 75.763 | 4.2053 | 0.001168 | 1.0044 |
One hundred. | 67.888 | 3.7682 | 0.001047 | 0.9000 | 75.950 | 4.2157 | 0.001171 | 1.0069 |
110 | 66.960 | 3.7167 | 0.001032 | 0.8877 | 76.177 | 4.2283 | 0.001175 | 1.0099 |
120 | 66.050 | 3.6662 | 0.001018 | 0.8757 | 76.451 | 4.2435 | 0.001179 | 1.0135 |
140 | 64.306 | 3.5694 | 0.000992 | 0.8525 | 77.155 | 4.2826 | 0.001190 | 1.0229 |
160 | 62.674 | 3.4788 | 0.000966 | 0.8309 | 78.107 | 4.3354 | 0.001204 | 1.0355 |
180 | 61.163 | 3.3949 | 0.000943 | 0.8109 | 79.360 | 4.4050 | 0.001224 | 1.0521 |
200 | 59.775 | 3.3179 | 0.000922 | 0.7925 | 80.996 | 4.4958 | 0.001249 | 1.0738 |
220 | 58.514 | 3.2479 | 0.000902 | 0.7757 | 83.137 | 4.6146 | 0.001282 | 1.1022 |
240 | 57.381 | 3.1850 | 0.000885 | 0.7607 | 85.971 | 4.7719 | 0.001326 | 1.1397 |
260 | 56.392 | 3.1301 | 0.000869 | 0.7476 | 89.821 | 4.9856 | 0.001385 | 1.1908 |
280 | 55.578 | 3.0849 | 0.000857 | 0.7368 | 95.285 | 5.2889 | 0.001469 | 1.2632 |
300 | 55.003 | 3.0530 | 0.000848 | 0.7292 | 103.60 | 5.7504 | 0.001597 | 1.3735 |
320 | 54.819 | 3.0428 | 0.000845 | 0.7268 | 117.78 | 6.5373 | 0.001816 | 1.5614 |
340 | 55.455 | 3.0781 | 0.000855 | 0.7352 | 147.88 | 8.2080 | 0.002280 | 1.9604 |
360 | 59.402 | 3.2972 | 0.000916 | 0.7875 | 270.31 | 15.004 | 0.004168 | 3.5836 |
液态水在32至675华氏度温度下的比热:
适用于等压比热全表旋转屏幕!
温度 | 等沸比热(Cv) |
等压比热(Cp) |
||||
(°F) | (Btu (IT) /(摩尔°R)] | (Btu (IT) /(磅米°F)) (千卡/ K)(公斤) |
(kJ / K)(公斤) | (Btu (IT) / kmol°R] | (Btu /磅米°F] (千卡/公斤K) |
(焦每千克K) |
32.2 | 40.0 | 1.007 | 4.217 | 40.032 | 1.008 | 4.220 |
40 | 39.9 | 1.005 | 4.208 | 39.916 | 1.005 | 4.208 |
50 | 39.8 | 1.001 | 4.191 | 39.801 | 1.002 | 4.196 |
60 | 39.6 | 0.996 | 4.169 | 39.739 | 1.001 | 4.189 |
80 | 39.2 | 0.986 | 4.128 | 39.660 | 0.999 | 4.181 |
One hundred. | 38.7 | 0.975 | 4.082 | 39.643 | 0.998 | 4.179 |
120 | 38.3 | 0.963 | 4.033 | 39.662 | 0.999 | 4.181 |
140 | 37.7 | 0.950 | 3.977 | 39.702 | 1.000 | 4.185 |
160 | 37.2 | 0.937 | 3.923 | 39.761 | 1.001 | 4.191 |
180 | 36.7 | 0.923 | 3.865 | 39.835 | 1.003 | 4.199 |
200 | 36.1 | 0.909 | 3.805 | 39.927 | 1.005 | 4.209 |
212 | 35.7 | 0.900 | 3.768 | 39.993 | 1.007 | 4.216 |
220 | 35.5 | 0.895 | 3.745 | 40.042 | 1.008 | 4.221 |
240 | 35.0 | 0.880 | 3.686 | 40.186 | 1.012 | 4.236 |
260 | 34.4 | 0.867 | 3.629 | 40.364 | 1.016 | 4.255 |
280 | 33.9 | 0.854 | 3.574 | 40.580 | 1.022 | 4.278 |
300 | 33.4 | 0.841 | 3.522 | 40.838 | 1.028 | 4.305 |
350 | 32.3 | 0.813 | 3.404 | 41.685 | 1.050 | 4.394 |
400 | 31.3 | 0.789 | 3.302 | 42.902 | 1.080 | 4.522 |
450 | 30.4 | 0.767 | 3.209 | 44.009 | 1.108 | 4.639 |
500 | 29.7 | 0.748 | 3.130 | 47.296 | 1.191 | 4.986 |
550 | 28.8 | 0.725 | 3.035 | 51.318 | 1.292 | 5.410 |
600 | 28.3 | 0.713 | 2.987 | 59.690 | 1.503 | 6.292 |
625 | 28.4 | 0.716 | 2.997 | 66.611 | 1.677 | 7.022 |
650 | 28.9 | 0.728 | 3.047 | 82.851 | 2.086 | 8.734 |
675 | 29.9 | 0.754 | 3.156 | 126.670 | 3.189 | 13.353 |