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+//example 1

+//work done during different processes

+clear

+clc

+P1=200 //initial pressure inside cylinder in kPa

+V2=0.1 //in m^3

+V1=0.04 //initial volume of gas in m^3

+W1=P1*(V2-V1) //work done in isobaric process in kJ

+printf("\n hence,the work done during the isobaric process is W1 = %.3f kJ. \n",W1)

+W2=P1*V1*log(V2/V1) //work done in isothermal process in kJ

+printf("\n hence,the work done in isothermal process is W2 = %.3f kJ. \n",W2)

+P2=P1*(V1/V2)^(1.3) //final pressure according to the given process

+W3=(P2*V2-P1*V1)/(1-1.3)

+printf("\n hence,the work done during the described process is W3 = %.3f kJ. \n",W3)

+W4=0 //work done in isovolumic process

+printf("\n hence,the work done in the isovolumic process is W4 = %.3f kJ. \n",W4)
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