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热量的计算,是学生在新一册物理课本中遇到的第一次定量计算,而且这部分知识也是前后几章的重点.因此,要重视对热量计算的学习.要会用热量计算公式,首先得明确公式的物理意义.在公式Q=cm(t-t0)或Q=cm(t0-t)中,m是吸热(或放热)物体的质量;c是该物质的比热容.在研究的时间内,t0是
The calculation of calories is the first quantitative calculation that students encounter in a new volume of physics textbooks, and this part of the knowledge is also the focus of several chapters. Therefore, we must pay attention to the calculation of calorie calculations. We must use the calorimetric formula. First, the physical meaning of the formula is clearly defined. In the formula Q=cm(t-t0) or Q=cm(t0-t), m is the mass of the endothermic (or exothermic) object; c is the specific heat capacity of the substance. During the study period, t0 is