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+clc
+//initialization of variables
+P=14.5 //lb/in^2
+T=70+460 //R
+rh=0.34
+//calculations
+disp("From steam tables,")
+Pg=0.3631 //lb/in^2
+Pair=P-Pg
+wratio=rh*0.622*Pg/Pair
+//results
+printf("Specific humidity = %.5f lbm/lbm",wratio)