WebWhy is cp > cv i. Some of the heat goes into doing work of expansion in a constant p process. ii. cv = 717 J / K / kg iii. cp = 1004 J / K / kg III. Adiabatic processes A. There is no heat exchange (dq = 0) between some substance and the environment of the substance in an adiabatic process. 1. The work done by, for example, an expanding gas ... WebDifference in Cp and Cv From the definitions of Cp and Cv, PV dq dq Cp Cv dT dT −=− (1) Substitution of the definition of entropy gives PV SS Cp Cv T TT ⎡⎤∂∂ −=⎢− ⎣⎦∂∂ ⎥ (2) These partials are converted from the total differential obtained from Sf= (,TV) VT SS dS dT dV TV ∂∂ =+ ∂∂, which when divided by dT at ...

Entropy of a Gas - NASA

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Where should Cp, Cv, and Cp/Cv be used? - linkedin.com

WebΔP is the pressure drop across the valve (expressed in psi). In more practical terms, the flow coefficient Cv is the volume (in US gallons) of water at 60 °F (16 °C) that will flow per … WebGas Cp Cv Cv/R Cp-Cv (Cp-Cv)/R. V P V1 1 2 V2 Adiabatic process: Q = 0 p =p(V,T) = ... WebEXAMPLE 1 Air at 1 bar and 298.15K (25℃) is compressed to 5 bar and 298.15K by two different mechanically reversible processes: (a) Cooling at constant pressure followed by heating at jay feather sport 197