现行教材中,只提到物体的内能跟温度有关.我在教学中发现,仅知道这一点,无法解答有关问题.因此,有必要全面分析决定内能大小的因素.物体内部所有分子做无规则运动的动能和分子势能的总和,叫做物体的内能.内能是物体内部所有分子的能量,跟构成物体的分子数目,即跟质量有关.从分子运动观点看,温度是物体分子平均动能的标志,分子的动能跟温 The current textbook only mentions that the internal energy of objects is related to temperature. I found out in teaching that only knowing this point can not answer the relevant questions. Therefore, it is necessary to comprehensively analyze the factors that determine the size of internal energy. All the molecules inside the object do nothing. The sum of the kinetic energy of the regular movement and the molecular potential energy is called the internal energy of the object. The internal energy is the energy of all the molecules inside the object, and the number of molecules that make up the object, that is, the quality. From the molecular motion point of view, the temperature is the average molecular kinetic energy of the object. Logo, molecular kinetic energy and temperature