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Thermodynamics - Thermodynamics Review zeroth law-shotter...

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Thermodynamics Special Topics 1 Thermodynamics Review zeroth law : -s hotter m hotter (T m -T h ) = s colder m colder (T m -T l ) first law : Δ U = q + w with q > 0 when heat absorbed; w < 0 when work done w = - P ext Δ V If P ext =P int (reversible) & isothermal: i f i f P P ln RT V V ln RT w = = = i f i f V 1 V 1 a b V b V ln RT w Heat capacities: Δ H = Δ U + Δ (PV) Enthalpy: Δ U = q V Δ H = q P dT C U d : volume t tan cons At . T U C V V V = = dV P T P T dT C dU V V + = dT C H d : pressure t tan cons At T H C P P P = = dP V T V T dT C dH P P + + = if there is no change of phase
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