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热值和热效率是初中热学中两个重要的概念.许多同学学习时将热值误解为热量,不能理解热效率中有效能量与总能量的关系.下面对热值和热效率这两个概念进行详细阐述,以期能对同学们有所帮助.
Calorific value and thermal efficiency are two important concepts in junior secondary school of heat.Many students misunderstood the calorific value as calorific value and could not understand the relationship between the effective energy and the total energy in thermal efficiency.The following detailed concepts of calorific value and thermal efficiency Expose, in order to be able to help students.