3 Properties

The intensive specific properties are typically lowercase, the corresponding extensive properties are uppercase:

$$v=\frac Vm \quad u= \frac Um \quad h=\frac Hm \qquad V=mv \quad U=mu \quad H=mh$$

Definition of enthalpy:

$$h \equiv u + p v$$

Specific volume and density:

$$v = \frac{1}{\rho}$$

Pressure and force:

$$F = p A$$

Static pressure differences versus height $H$ (height also indicated by $Z$) differences:

$$p_A - p_B = - \rho g \left(H_A - H_B\right)$$

Number of kilomoles:

$$\bar n = \frac mM$$

where $M$ is the molecular mass (table A.5.) Think of the molecular mass as having units of kg/kmol.