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diff --git a/1427/CH2/EX2.6/2_6.sce b/1427/CH2/EX2.6/2_6.sce
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+//ques-2.6
+//Calculating Gross and net calorific value of coal
+clc
+x=0.92;//Weight of coal sample (in g)
+W=550;//Weight of water (in g)
+w=2200;//Water equivalent (in g)
+t=2.42;//Rise in temperature
+a=50;//Acid corrections
+f=10;//Fuse wire corrections
+H=6;//Percentage of Hydrogen
+L=580;//Latent heat of steam (in cal/g)
+GCV=((W+w)*t-(a+f))/x;//Gross calorific value
+NCV=GCV-0.09*H*L;//Net calorific value
+printf("Gross calorific value is %.1f cal/g and Net calorific value is %.1f cal/g respectively.\n",GCV,NCV);