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热力学第一定律 当量原理 热力学解析式 总能量 内能 PowerPoint PPT Presentation


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热力学第一定律 当量原理 热力学解析式 总能量 内能. 介绍热力学第一定律 及其应用和总能量、内能的定义. 热力学第一定律解析式的应用. 热力学第一定律的应用. 2/8. 第二章 热力学第一定律. §2—1 热力学第一定律 当量原理. 一、热力学第一定律 能量守恒与转换定律: 一切物质都具有能量,能量有各种不同形式,既不能消灭,也不能创造,但能够从一种形式转化为另一种形式,在转化过程中,能量的总和保持不变,热力学第一定律在热力学中的应用就是能量守恒与转换定律。.

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热力学第一定律 当量原理 热力学解析式 总能量 内能

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2/8


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  • 21


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  • 1-2-1


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  • wQ

  • Q = AW


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  • SIW1111KW(KWh)1KWh=10003600=3610J

  • =3600KJ


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  • (Kcal)1kgIatm14.5C15.5C(kgm)AlA

  • A1A=427kgmkcal


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  • hp75kgm1

  • SI


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  • dwdQwdw


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  • dQ


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  • 125:112 41800 450 12


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  • =2552 KW


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22

  • A22C1122


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  • 1B22C1122)


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  • 12

  • AB

  • E


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  • dQ = dE + dW

  • 1kg


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  • 4kg754kJ490kJ?

  • =66 =660.23884

  • =15.76


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23

EZ U()E


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  • lkge

  • u( )

  • v( )

  • Zm


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  • 123A BCD

  • =


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  • 1241()ABCDZZ Z Z

  • =

  • =


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121


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1-2-2


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1-2-3


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1-2-4


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