Entropy per unit mass

In what follows we shall denote the energy, volume, and entropy per unit mass by the small letters u, r, s. 

Both conditions must be satisfied simultaneously, for the condition that both phases become identical at the critical point certainly requires that their intrinsic energies and entropies per unit mass are equal ... 

Let [1], [2], [8] be any three modifications of a substance which can exist together in equilibrium at a triple point, and let t i, r2, r3 be their specific volumes su s2, s3, their entropies per unit mass. The gradients of the p-T curves at the triple point are given by the latent-heat equations ... 

Entropy per unit mass erg/gram C Joule/kilogram K foot-poundal/pound DC L2T-2 -l foot-pound/slug F L2T (r FM 1 L9 1... 

Entropy per unit mass, specific heat calorie/gram C joule/kilogram K Btu/pound °F — HM 9 ... 

Absolute pressure (kN/m2) Temperature Enthalpy per unit mass (Hs) (kJ/kg) Entropy per unit mass (5,1 (kJ/kg K) Specific volume (v) irnVkg ... 

A basic question concerns whether the configurational entropy should be defined as an entropy per unit mass (or molar entropy) or as an entropy per unit volume (a site entropy or an entropy density ) [22]. The majority of experimental studies [15, 49] concerning the validity of the AG theory use the molar entropy, while Binder and co-workers [55] have employed the site entropy in their computational studies of the applicability of AG theory. In fact, our calculations indicate [22] that the configurational entropy per unit volume... 

Available energy Mass flow rate Mass flux Pressure Gas Constant Entropy per unit mass Entropy flux Entropy production Time... 

Mf 5 is the entropy per unit mass, then actually only iV — 1 independent intensive parameters must be specified because p, p, and a are intensive properties that are independent of the size of the system. 

The Specific Entropy (s) of a substance is the entropy per unit mass, i.e. 

For each balance law, the values of -0, J and 4> defines the transported quantity, the diffusion flux and the source term, respectively, v denotes the velocity vector, T the total stress tensor, gc the net external body force per unit of mass, e the internal energy per unit of mass, q the heat flux, s the entropy per unit mass, h the enthalpy per unit mass, u>s the mass fraction of species s, and T the temperature. 

MkSk = net rate of entropy flow due to the flows of mass into and out of the t=i system (5 = entropy per unit mass)... 

There are two important simplifications of Eq. 4.1-9. First, if the entropy per unit mass of each stream entering and leaving the system is constant in time (even though... 

The total volume per unit mass, V, the total entropy per unit mass, S, and so on, are related to the analogous quantities in each of the phases by the equations... 

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