2019 物理化学：动力学专题(苏州大学) 最新满分章节测试答案

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本课程起止时间为:2019-06-13到2019-08-20
本篇答案更新状态:已完结

Chapter 2. Kinetic Theory of Gases 气体分子运动理论 Chapter 2 Quiz

1、 问题:比大小：_____
选项：
A:>
B:=
C:<
D:无法判断
答案: 【>】

2、 问题:O2和CCl4的平均速度比值为：(O2) : (CCl4)=
选项：
A:2.19
B:0.46
C:4.80
D:0.21
答案: 【2.19】

3、 问题:A Knudsen cell can be used to measure ______ of a material.
选项：
A:the molar mass
B:the temperature
C:vapor pressure
D:average speed
答案: 【vapor pressure】

4、 问题: The average speed is where the maximum value the distribution function is.
选项：
A:正确
B:错误
答案: 【错误】

5、 问题: Doubling the absolute temperature will double the average speed of molecules
选项：
A:正确
B:错误
答案: 【错误】

6、 问题:Cars were timed by police radar as they passed in both directions below a bridge. Their velocities (km/hr, numbers of cars in parentheses) to the east (E) and west (W) were as follows: 80 E (40), 85 E (62), 90 E (53), 95 E (12), 100 E (2); 80 W (38), 85 W (59), 90 W (50), 95 W (10), 100 W (2). The RMS speed is _ (请保留小数点后一位）
答案: 【86.4】

7、 问题:The ratio of average speed and average
translational kinetic energy of of CH4 and N2 at 298K is ______
答案: 【1】

8、 问题:The escape velocity from Earth’s surface is given by v=(2gR)^(1/2) where g is the gravitational acceleration (9.807 m/s^2) and R is the radius of earth (6.37×10^6 m). When the most probable speed for N2 be equal to the escape velocity, the temperature (in K) is at the order of _____ (仅答数量级就可以了）
答案: 【5】

9、 问题:The most probable velocity in one-dimension is __
答案: 【0】

10、 问题:The temperature at the tropopause is 220 K, and the collision frequency of N2 is 3.16 x 10^9 s^(-1). the mean free path of N2 at this altitude is _____ micron (um). The collision cross section for N2 is 0.43 nm^2.
答案: 【(0.11,0.18)】

Chapter 3. Transport Properties 物质输运性质 Chapter 3 Quiz

1、 问题:The collisional cross section for acetylene (C2H2) is larger than N2. Based on this information, choose the correct statement in the following.
选项：
A:C2H2 has a higher thermal conductivity.
B:C2H2 has a lower thermal conductivity.
C:N2 has a larger viscosity.