equilibrium constant Which of thefollowing are true statements ? More than one a
ID: 678887 • Letter: E
Question
equilibrium constant Which of thefollowing are true statements ? More than one answer can becorrect a) For a reaction where Kc >> 1, theinitial concentration of reactant is 0.0032 M.When equilibrium has been achieved, this concentration will havebeen
reduced to a much smaller value b) For a chemical reaction where Kc˜ 1, , the concentration of product species will
be neglibible compared to the concentration of reactant specieswhen
equilibrium has been achieved c) For a reaction where Kc << 1, theinitial concentration of reactant is 0.0489 M.
When equilibrium has been achieved, this concentration will havebeen reduced to a much
smaller value d) A catalyst can reduce the time a given reaction takes toreach equilibrium, but in doing so will cause
different equilibrium concentrations than those achieved withoutthe use of the catalyst equilibrium constant Which of thefollowing are true statements ? More than one answer can becorrect a) For a reaction where Kc >> 1, theinitial concentration of reactant is 0.0032 M.
When equilibrium has been achieved, this concentration will havebeen
reduced to a much smaller value b) For a chemical reaction where Kc˜ 1, , the concentration of product species will
be neglibible compared to the concentration of reactant specieswhen
equilibrium has been achieved c) For a reaction where Kc << 1, theinitial concentration of reactant is 0.0489 M.
When equilibrium has been achieved, this concentration will havebeen reduced to a much
smaller value d) A catalyst can reduce the time a given reaction takes toreach equilibrium, but in doing so will cause
different equilibrium concentrations than those achieved withoutthe use of the catalyst
Explanation / Answer
only A is true. if Kc is much larger than 1, the products are so favored thatyou'll see very little of it in the end. if Kc = 1, then products and reactants are approximately equallyfavored. if Kc is much less than one, the reactants are highly favored, andyou'll see very little of the product. A catalyst will never ever change the equilibriumvalue. Ever.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.