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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 2,Example 4")
+t1=0;//temperature at ice point
+t2=100;//temperature at steam point
+t3=50;//temperature of gas
+disp("emf equation,e=0.18*t-5.2*10^-4*t^2 in millivolts")
+disp("as ice point and steam points are two reference points,so")
+disp("at ice point,emf(e1)in mV")
+e1=0.18*t1-5.2*10^-4*t1^2
+disp("at steam point,emf(e2)in mV")
+e2=0.18*t2-5.2*10^-4*t2^2
+disp("at gas temperature,emf(e3)in mV")
+e3=0.18*t3-5.2*10^-4*t3^2
+disp("since emf variation is linear so,temperature(t)in degree celcius at emf of 7.7 mV")
+t=((t2-t1)/(e2-e1))*e3
+disp("temperature of gas using thermocouple=60.16 degree celcius")
+disp("% variation in temperature reading with respect to gas thermometer reading of 50 degree celcius")
+variation=((t-t3)/t3)*100