PART 3 Flashcards
(18 cards)
based on a specific stoichiometric equation and denotes how much reaction occurs
extent of reaction
it provides a way to relate the consumption of reactants and the formation of products using a single variable, making material balance calculations more systematic in reacting systems
extent of reaction
formula for the extent of reaction
ni - nio / Vi
what is the sign for the reactant in the stoichiometric coefficient
negative
what is the sign for the product in the stoichiometric coefficient
positive
extent of reaction can also be used in determining the _______ of a certain chemical compound involved in the reaction
final moles
defined as the species in a chemical reaction that theoretically would be the first to be completely consumed if the reaction were to proceed to completion according to the chemical equation, even if the reaction does not actually proceed to completion
limiting reactant
all other reactants involved in a chemical reaction
excess reactar
a quantity that assumed the complete reaction of each reactant
maximum extent of reaction
where can the maximum extent of reaction be used
to determine the limiting reactant
the fraction or percentage of a specified reactant that has reacted in a chemical process
conversion or degree of completion
fraction or percentage of a chemical reaction that has been completed based on the theoretical maximum possible reaction extent
conversion or degree of completion
ratio of the moles of a particular product (desired) produced to the moles of another product (undesired or byproduct) produced in a single reaction or group of reaction
selectivity (S)
commonly used when side reactions (unwanted reactions) occur in a chemical reaction process
selectivity
the amount (mass or moles) of the desired product obtained divided by the amount of key (frequently the limiting) reactant fed
yield based on feed
the amount (mass or moles) of the desired product obtained divided by the amount of the key (frequently the limiting) reactant consumed
yield based on the reactant consumed
the amount (mass or moles) of a product obtained divided by the theoretical (expected) amount of the product that would be obtained based on the limiting reactant in the chemical reaction equation(s) if it were completely consumed
yield based on 100% conversion
the smallest set of linearly independent chemical equations that fully describe a reacting system
minimal set of reaction equations
