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diff --git a/172/CH14/EX14.1/ex1.sce b/172/CH14/EX14.1/ex1.sce
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+//ques1
+//to determine the sublimation pressure of water
+clear
+clc
+//from table in appendix B.1.5
+T1=213.2;//K, Temperature at state 1
+P2=0.0129;//kPa, pressure at state 2
+T2=233.2;//K, Temperature at state 2
+hig=2838.9;//kJ/kg, enthalpy of sublimation 
+R=.46152;//Gas constant 
+//using relation log(P2/P1)=(hig/R)*(1/T1-1/T2) 
+P1=P2*exp(-hig/R*(1/T1-1/T2));
+printf('Sublimation Pressure = %.5f kPa \n',P1);
+\ No newline at end of file