欢迎来到天天文库
浏览记录
ID:10279874
大小:968.10 KB
页数:93页
时间:2018-07-05
《化工原理杨祖荣着17章课后答案》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、课后答案网,用心为你服务!大学答案---中学答案---考研答案---考试答案最全最多的课后习题参考答案,尽在课后答案网(www.khdaw.com)!Khdaw团队一直秉承用心为大家服务的宗旨,以关注学生的学习生活为出发点,旨在为广大学生朋友的自主学习提供一个分享和交流的平台。爱校园(www.aixiaoyuan.com)课后答案网(www.khdaw.com)淘答案(www.taodaan.com)目录第一章流体流动与输送设备··································
2、···················(2)第二章非均相物系分离·························································(26)第三章传热···································································(31)第四章蒸发···································································(45)第五章吸收
3、····································································(49)第六章蒸馏···································································(69)第七章干燥···································································(83)1第一章流体流动与输送设备1.燃烧重油所得的燃烧气,
4、经分析知其中含CO28.5%,O27.5%,N276%,H2O8%(体积%),试求此混合气体在温度500℃、压力101.3kPa时的密度。解:混合气体平均摩尔质量3MyM0.085440.075320.76280.081828.8610kg/molmii∴混合密度33pMm101.31028.861030.455kg/mmRT8.31(273500)332.已知20℃下水和乙醇的密度分别为998.2kg/m和789kg/m,试计算50%(质量%)乙醇
5、水3溶液的密度。又知其实测值为935kg/m,计算相对误差。解:乙醇水溶液的混合密度1a1a20.50.5998.2789m123881.36kg/mm相对误差:m实m881.36100%1100%5.74%m实9353.在大气压力为101.3kPa的地区,某真空蒸馏塔塔顶的真空表读数为85kPa。若在大气压力为90kPa的地区,仍使该塔塔顶在相同的绝压下操作,则此时真空表的读数应为多少?''解:ppppp绝a真a真''pp(pp
6、)90(101.385)73.7kPa真aa真34.如附图所示,密闭容器中存有密度为900kg/m的液体。容器上方的压力表读数为42kPa,又在液面下装一压力表,表中心线在测压口以上0.55m,其读数为58kPa。试计算液面到下方测压口的距离。解:液面下测压口处压力ppgzpgh题4附图013p1ghp0p1p0(5842)10zh0.552.36mgg9009.8125.如附图所示,敞口容器内盛有不互溶的油和水,油层和水层的厚度分别为70
7、0mm和600mm。33在容器底部开孔与玻璃管相连。已知油与水的密度分别为800kg/m和1000kg/m。(1)计算玻璃管内水柱的高度;(2)判断A与B、C与D点的压力是否相等。h1AB解:(1)容器底部压力h2ppghghpghCDa油1水2a水hh800题5附图油1水2油hhh0.70.61.16m121000水水(2)ppppABCD6.水平管道中两点间连接一U形压差计,指示液为汞。已知压差计的读数为30mm,试分别计算管内流体为(1)水;
8、(2)压力为101.3kPa、温度为20℃的空气时压力差。解:(1)p()Rg(136001000)0.039.813708.2Pa0(2)空气密度33'pM101.310291031.206kg/mRT8.31(27320)''p()Rg(136001.206)0.039.814002.1Pa0'∵空气密度较小,∴pRg07.用一复式U形压差计测量水流过管路中A、B两点的压力差。指示液为汞,两U形管之间充满水,已知h1=1.2m
此文档下载收益归作者所有