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→Carnot theorem 卡诺定理
* 所有<font color = 'blue'>在两个热源之间工作的</font>可逆热机的效率与在<font color = 'red'><s>两相同</s></font><font color = 'blue'>同一个</font>热源之间工作的卡诺机相等。
* 所有<font color = 'blue'>在两个热源之间工作的</font>可逆热机的效率与在<font color = 'red'><s>两相同</s></font><font color = 'blue'>同一个</font>热源之间工作的卡诺机相等。
'''<font color="#32CD32">所有在两个热源之间工作的可逆热机的效率与在两相同热源之间工作的卡诺机相等。All irreversible heat engines between two heat reservoirs are less efficient than a [[Carnot engine]] operating between the same reservoirs.</font>'''
--[[用户:Dorr|Dorr]]（[[用户讨论:Dorr|讨论]]）改成同一个正确吗??????????????????????????
--[[用户:Dorr|Dorr]]（[[用户讨论:Dorr|讨论]]）改成同一个正确吗??????????????????????????
--[[用户:嘉树|嘉树]]（[[用户讨论:嘉树|讨论]]）我不太理解什么叫between the same reservoirs。我的理解是效率不取决于热源这个实体，而取决于温差，所以就按照两个热源和一个相同的热源相对应地翻译了。但是这一句我仍然有疑问，因为两个热源之间工作和两相同热源之间工作，似乎还不构成相互比较的关系。已经标绿
In his ideal model, the heat of caloric converted into work could be reinstated by reversing the motion of the cycle, a concept subsequently known as [[thermodynamic reversibility]]. Carnot, however, further postulated that some caloric is lost, not being converted to mechanical work. Hence, no real heat engine could realise the [[Carnot cycle]]'s reversibility and was condemned to be less efficient.
In his ideal model, the heat of caloric converted into work could be reinstated by reversing the motion of the cycle, a concept subsequently known as [[thermodynamic reversibility]]. Carnot, however, further postulated that some caloric is lost, not being converted to mechanical work. Hence, no real heat engine could realise the [[Carnot cycle]]'s reversibility and was condemned to be less efficient.
该理论尽管是用热<s>量</s>表述的（见被取代的'''<font color = '#ff8000'>热质说</font>'''），而不是熵，但是它是对第二定律的早期认识。
该理论尽管是用热<s>量</s>表述的（见被取代的'''<font color = '#ff8000'>热质说</font>'''），而不是熵，但是它是对第二定律的早期认识。
===Clausius inequality 克劳修斯不等式===
===Clausius inequality 克劳修斯不等式===