Refrigerant 134a is the working fluid for vapor-compression refrigeration cycle. the evaporator temperature is 8°c and the condenser pressure is 12 bar. saturated vapor enters the compressor and superheated vapor enters the condenser at 60°c and exits the condenser as saturated liquid. for a refrigeration capacity of 8 tons or 2.816 x104j/s determine the following: (1) the refrigerant mass flow rate in kg/s; (2) the compressor isentropic efficiency (hint: interpolation is required]; (3) the compressor power in kw; (4) the system coefficient of performance; and (5) sketch the ts diagram.

Answerthis solution will not form a precipitateexplanationsolubility equilbrium:         pbf₂(s)  ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is    (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as    then, we can interpret  q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually  forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product:     since q = 2.7  × 10⁻⁸ < ksp =  4  ×  10⁻⁸, a precipitate will not form.

Answer earth,water,fire and air;

Ican't see the chart but the density of both nickel and cobalt is 8.90 g/cm3, so it would be one of those.