Good Ozone and Bad Ozone Stratospheric ozone protect lives on Earth from harmful effects of UV radiation. .Iropospheric ozone: Causing respiratory distress and eye irritation Destroying plants Producing cracks in rubber Ozone is a strong oxidant, reacts with molecules containing C=C double bonds, forming epoxides

pH of a buffer and buffer capacity Example: For a buffer solution consisting of 0. 1 M acetic acid and o1M sodium acetate the ph of the solution is 4.75 HAc= i If an amount of hydrochloric acid equivalent to 10% of the acetate present, is added to the buffer, what is the new pH of the solution?

SI住宅 Skeleton(S)=结构体 100年以上的耐久性

一、填空:(0.5*20=10分) 1、组织施工的基本方法有

一、填空(0.5*20=10分) 1.组织施工的基本方法 2.基本建设程序,一般可划分为

1. Which of the following processes must violate the first law of thermodynamics?(There may be more than one answer!) ()W>0, 0, (C)W>0, 0, and AEint0,g>0,andEint<0

工业企业的财务成果:指企业的利润或亏损 ,统称为盈亏。 企业财务成果核算的主要内容:利润计算和 对利润进行分配。 企业的净利润分下面四步计算: 1.主营业务利润=主营业务收入一主营业务成本 一主营业务税金及附加

I光學劃分 (一)幾何光學(Geometrical Optics) 光束光學(Ray Optics) (二)物理光學( Physical Optics) =波動光學(Wave Optics) (三)量子光學(Quantum Optics)

强化与消弱原因:工程上需要。 强化与消弱依据: 2=8AX12(Eb1-Eb2) 强化辐射换热的具体措施:增加换热表面发射率以及增加角系 数的方法

Recall the definition of stress: o stress =\intensity of internal force at a point\ Figure 3.1 Representation of cross-section of a general body