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+//Chemical Engineering Thermodynamics
+//Chapter 3
+//First Law of Thermodynamics
+
+//Example 3.4
+clear;
+clc;
+
+//Given
+W = 0;//work done during the process
+P1 = 1;//Initial pressure in atm
+P2 = 10;//Final pressure in atm
+V2 = V1;//Initial & final volume are equal
+Cv = 0.23//specific heat at constant volume in Kcal/Kg deg K
+//(delQ/delT)=Q
+Q = 1.3;//Rate of heat addition in Kcal/min
+m = 2.5//Weight of an ideal gas in Kg
+T1 = 298//Initial temperature in Kelvin
+
+//To calculate the time taken for the gas to attain 10 atm
+//Q = m*Cv*(delT/delt)=1.3
+T2 = (P2*T1)/(P1);//Final temperature in Kelvin
+t = ((m*Cv)/1.3)*(T2-T1);//time taken in minutes
+mprintf('The time taken to attain a pressure of 10 atm is %f hrs',t/60);
+//end
+\ No newline at end of file