Propane at $60$ bar and $30\backslash$deg C containing some liquid water is contained in a cylinder. The propane is sparingly soluble in water at these conditions. Assume that the activity coefficient of propane $($vi$)$ can be described in terms of the liquid mole fraction of water$($x$2)$ by the equation In y$,=$ Axz', where A is a constant. The saturation pressure of propaneat this temperature is $10\mathrm{.}8$ bar.$($a$)$ Calculate the fugacity of propane in either phase.$($b$)$ Provide a value for the Henry's law constant for propane in water as a function of the constant A at this Pressure