Question

Question 1: [40 points] The vapor pressure of Silver between 1234 K and 2485 K is given by the following equation: 14260 In(P) - In(T) + 12.23 т With P in torr and Tin K. Estimate the enthalpy of vaporization at 1600 K. State the assumptions that you make and show all your solution steps.

Answer 1

Sol from Coppon Can. de dif T(ov). Assung ideal Gros & No > VL. we love Av=vg. >) Vo = RT Р do P DHE RT? Since drip - - 14 260 - In T. +1883. dT T Int 412.83 7-43). 14860 -1 T8 T ат P = expl-14860 alp - expl-14260 In1+1293 P[14960 - 61 14960 - +] = $(Dhun) DHuopa (1 6oo) PS Ry? 14860 8.314x1600 Clboo) 0.004945 X 8-314x16oo? Dhup = 105365084 J/mol = 1105.955 kJ/mol

using clapeyron equation and given data we can find the enthalpy of vaporisation

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