Each of the following properties have very similar formulas, and can all be thought of as weighted averages of the respective [[Mixtures|mixture]] components. $u=\sum_{i=1}^kc_iu_i$ $C_{v0,tot}=\sum_{i=1}^kc_iC_{v0,i}$ $h=\sum_{i=1}^kc_ih_i$ $C_{p0,tot}=\sum_{i=1}^kc_iC_{p0,i}$