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Yield and selectivity chemical engineering

Yield and selectivity chemical engineering

In chemical reaction engineering, "yield", "conversion" and "selectivity" are terms used to describe ratios of how much of a reactant was consumed (conversion), how much desired product was formed (yield) in relation to the undesired product (selectivity), represented as X, Y, and S.

  1. What is selectivity in chemical reaction engineering?
  2. What is chemical selectivity?
  3. What is selectivity in engineering?
  4. What does yield mean in chemical equations?

What is selectivity in chemical reaction engineering?

The selectivity (ap) is the ratio of the amount of a desired product P obtained and the amount of a key reactant converted.

What is chemical selectivity?

What is Selectivity? Selectivity is the discrimination shown by a reagent in competitive attack on two or more substrates or on two or more positions in the same substrate. It is quantitatively expressed by ratios of rate constants of the competing reactions, or by the logarithms of these ratios.

What is selectivity in engineering?

DEFINITION. The selectivity of a reaction is the ratio of the desired product formed (in moles) to the undesired product formed (in moles).

What does yield mean in chemical equations?

Yield (reaction yield): A measure of a chemical reaction's efficiency, as a ratio of moles of product to moles of reactant. Usually expressed as a percentage. % Yield = Moles of product.

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