initial commit / add all books

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+//clc()

+mair = 500;//kg

+mCO2 = 55;//kg

+mCO = 15;//kg

+//C3H8 + 5O2 = 3CO2 + 4H20

+MCO2 = 44;

+MCO = 28;

+NCO2 = mCO2 / MCO2;

+NCO = mCO / MCO;

+Mair = 29;

+Nair = mair / Mair;

+//carbon balance gives,

+F = (NCO2 + NCO)/3;

+MC3H8 = 44.064;

+mC3H8 = MC3H8 * F ;

+disp("kg",mC3H8,"(a)mass of propane burnt = ")

+//one mole of propane requres 5 moles of oxygen for combustion

+NO2 = F * 5;

+Nairt = NO2 * 100 /21;//theoretical air required

+Pexcess = (Nair - Nairt) * 100 / Nairt;

+disp("%",Pexcess,"(b)The percent excess air = ")

+//C3H8 + 7/2 * O2 = 3CO + 4H2O

+NH2O = F * 4;

+//Taking oxygen balance, unburned oxygen is calculated,

+//O2 supplied = O2 present in form of CO2, CO and H2O + unburned O2

+Nunburnt = Nair * 21 / 100 - NCO2 - NCO/2 - NH2O/2;

+NN2 = Nair * 79 / 100;

+Ntotal = NCO2 + NCO + NH2O + NN2 + Nunburnt;

+PCO2 = NCO2 * 100 / Ntotal;

+PCO = NCO *100/ Ntotal;

+PH2O = NH2O *100/ Ntotal;

+PN2 = NN2 *100/ Ntotal;

+PO2 = Nunburnt *100 / Ntotal;

+disp("%",PCO2,"(c)Percent composition of CO2 = ")

+disp("%",PCO,"Percent composition of CO = ")

+disp("%",PH2O,"Percent composition of H2O = ")

+disp("%",PN2,"Percent composition of N2 = ")

+disp("%",PO2,"Percent composition of O2 = ")
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