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diff --git a/797/CH5/EX5.12.s/5_12_solution.sce b/797/CH5/EX5.12.s/5_12_solution.sce
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+//Solution 5-12
+pathname=get_absolute_file_path('5_12_solution.sce');
+filename=pathname+filesep()+'5_12_example.sci';
+clc;
+exec(filename)
+P_1 = P_1 * 1000; //pressure conversion from [kPa] to [Pa]
+P_2 = P_2 * 1000;
+Vdot = Vdot / 1000; //conversion from [L/s] to [m^3/s]
+eta_motor = eta_motor / 100;
+Wdot_electric = Wdot_electric * 1000; //conversion from [kW] to [W]
+c = c * 1000;
+//(a)
+mdot = rho * Vdot; //mass flow rate of water
+Wdot_pumpshaft = eta_motor * Wdot_electric; //efficiency relation between motor and pump
+deltaEdot_mechfluid = mdot * (P_2 - P_1)/rho;
+eta_pump = deltaEdot_mechfluid / Wdot_pumpshaft * 100; //from efficiency relation
+printf("Efficiency of pump is %1.4f percent", eta_pump);
+//(b)
+Edot_mechloss = Wdot_pumpshaft - deltaEdot_mechfluid; //energy lost
+deltaT = Edot_mechloss / (mdot * c);
+printf("\nTemperature rise of water as it flows through the pump is %1.3f degree C", deltaT);