化工原理_(杨祖荣_著)_高等教育出版社_课后答案

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化工原理(杨祖荣著)高等教育出版社课后答案

目 录

第-章 流体流动与输送设备···············································（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···································································（49）
第六章 蒸馏··································································（69 ）
第七章 干燥···································································（83 ）

第-章 流体流动与输送设备

1. 燃烧重油所得的燃烧气，经分析知其中含 CO2 8.5%，O2 7.5%，N2
76 %，H2 O8%（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


2 .已知20℃下水和乙醇的密度分别为998.2 kg/m3和789kg/m3，试计算 50%（质量%）乙醇水溶液的密度。又知其实测值为935 kg/m3，计算相对误差。
解：乙醇水溶液的混合密度