Chapter 13 temperature, heat transfer, and first law of thermodynamics Thermodynamics study the thermal energy (often 10\ -Universe just after beginning called the internal energy) of systems

The dynamics of many-particle systems is called statistical mechanics. The kinetic theory is a special aspect of the statistical mechanics of large number of particles. Suitable averages of the physical characteristics and motions of individual particles provide information about the macroscopic behavior of the system as a whole

第一章绪论 1、计算下列情况的de- Broglie波长,指出那种情况要用量子力学处理: (1)能量为0.025eV的慢中子n1.67.10240-24克):被铀吸收;

1、氢原子处在基态 求: (1)r的平均值;

1、证明:x=1 2、求在自旋态x()中,Sx和的测不准关系(2()=?

1、电子在均匀电场E=k中运动,其哈密顿算符为2μ试判断下列力学量算符中,哪些算符与H对易:

1、下列算符中哪些是线性算符:

1、设粒子的归一化波函数为(x,y2),求 (1)在(xx+dx)范围内找到粒子的几率; (2)在(y,y2)范围内找到粒子的几率; (3)在(x1,x2)及(1=2)范围内找到粒子的几率

1、在温度下T=0k附近,钠的价电子能量约为3电子伏特,求其德布罗意波长。 2、求与下列各粒子相关的德布罗意波长。 (1)能量为100电子伏特的自由电子; (2)能量为0.1电子伏特的自由中子;

1、转动惯量为I,电矩为D的平面转子处在均匀电场E中,电场是在转子运动的平面上,用微扰法求转子能量的修正值 2、转子惯量为I,电矩为D的空间转子处在均匀弱电场E中,用微扰法求转子基态能量的二级修正