Thermodynamics & Heat and Mass Transfer

For a calorically perfect gas

$\boldsymbol{P\: v=\: R\: T}\linebreak where \linebreak \boldsymbol{R=\frac{Universal \: Gas \: Constant}{Molecular\: weight}}\linebreak \linebreak \boldsymbol{v=\frac{Volume}{Mass}}$

i.e.,

$\boldsymbol{P\: V=\: n\: R\: T}$

Isothermal compressibility

$\boldsymbol{k=\frac{-1}{V}\: \left ( \frac{\partial V}{\partial P} \right )_{T=constant}}$

First law of thermodynamics

$\boldsymbol{For\: a\: closed\: system,\: \: \: Q=U+W}$

Second law of thermodynamics

$\boldsymbol{For\: a \: reversible\: steady\: flow\: process,\: \: Q_{1-2}=\int_{1}^{2}T\: dS}$

$\boldsymbol{Change\:in\:Entropy = \frac{dQ}{T}=\frac{Heat\:loss\:(or)\:gain}{Temperature}}$

$\boldsymbol{For\: any \: Irreversible\: process,\: \: \left ( \Delta S \right )_{system}+\left (\Delta S \right )_{surrounding}>0}$

$\boldsymbol{Steady\: state\: flow \: equation, \: \: \: \: \dot{m} h_{1}+\dot{Q}=\dot{m} h_{2}+\dot{W}}$

03 ஜனவரி, 2019

Thermodynamics & Heat and Mass Transfer

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