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diff --git a/2873/CH1/EX1.8/Ex1_8.sce b/2873/CH1/EX1.8/Ex1_8.sce
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+// Display mode
+mode(0);
+// Display warning for floating point exception
+ieee(1);
+clear;
+clc;
+disp("Engineering Thermodynamics by Onkar Singh,Chapter 1,Example 8")
+d=15*10^-2;//diameter of cylinder in m
+h=12*10^-2;//manometer height difference in m of mercury
+rho=13.6*10^3;//density of mercury in kg/m^3
+g=9.81;//acceleration due to gravity in m/s^2
+disp("pressure measured by manometer(P) in pa")
+disp("p=rho*g*h")
+p=rho*g*h
+disp("now weight of piston(m*g) = upward thrust by gas(p*%pi*d^2/4)")
+disp("mass of piston(m)in kg")
+disp("so m=(p*%pi*d^2)/(4*g)")
+m=(p*%pi*d^2)/(4*g)