問題詳情
5. As shown in Fig. 4, a tank with fixed volume,
contains brine with initial density, ρi,greater than water. Pure water enters the tank steadily and mixes thoroughly with the brinein the tank. The liquid level in the tank remains constant. Derive expressions for (a) the rateof change of density of the liquid mixture in the tank, and (b) the time required for thedensity to reach the value ρf, where, ρi ＞ ρf ＞ ρH2ONote: A first-order lincar differential equation:y'(x)+ p(x)y = q(x). Its solution is
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