A rigid tank of volume $2.5\ \mathrm{m^3}$ contains 5 kg of wet steam at $75\ ^\circ\mathrm{C}$. How much heat is required to completely convert this into dry saturated steam? What would be the final pressure and temperature?

Saturated water data: at 75 C, $v_f = 0.001026$, $v_g = 4.1291\ \mathrm{m^3/kg}$, $u_f = 313.99$, $u_g = 2475.3\ \mathrm{kJ/kg}$. Pressure table: at 350 kPa, $T_s = 138.86\ ^\circ\mathrm{C}$, $v_g = 0.52422\ \mathrm{m^3/kg}$, $u_g = 2548.5\ \mathrm{kJ/kg}$; at 375 kPa, $T_s = 141.30\ ^\circ\mathrm{C}$, $v_g = 0.49133\ \mathrm{m^3/kg}$, $u_g = 2550.9\ \mathrm{kJ/kg}$.