PRINCIPLES OF CHEMICAL ENGINEERING QUESTIONS AND VERIFIED ANSWERS|100% CORRECT|GRADE A+

PRINCIPLES OF CHEMICAL
ENGINEERING QUESTIONS AND
VERIFIED ANSWERS|100%
CORRECT|GRADE A+
Limiting Reactant - ANSWER A reactant is limiting if it is present in less than its stoichiometric proportion
relative to every other reactant



Fractional Excess - ANSWER feed-stoich/stoich



Percentage Excess - ANSWER 100xFractional Excess



Fractional Conversion - ANSWER Moles Reacted/Moles Fed



Extent of Reaction - ANSWER Dimensionless quantity, E = (ni-nio)((moles i)/vi(moles i)

n is number of moles and v is the stoichiometric coefficient of each species... also ni= ni0+viE and the
moles reacted of the limiting reactant



Yield - ANSWER (moles of desired product formed/moles that would be formed if there were no side
reactions and the limiting reactant were consumed completely)100



Selectivity - ANSWER moles of desired product formed/moles of undesired product formed



Fractional Yield - ANSWER Yield/100



Yield Pt2 - ANSWER moles of desired product formed/moles of reactant fed



yield pt3 - ANSWER moles of desired product formed/moles of reactant consumed in reactor