increases 6. Which of the following statements islare comect? A large negative f
ID: 516049 • Letter: I
Question
increases 6. Which of the following statements islare comect? A large negative free-energy ehange for a reaction means that I. the equilibnun constant for the reaction is large. ll. the equilibrium constant for the reaction is smau. III, the reaction greatly favors fomation of the praducts. IV. only a small amount of product is produced at equilibnum. a only d both 1 and IV e, both II and IV c both I and III T. Reductiopis th a gain of electrons d loss of pratons. e. loss of mass. to33 of electrons c. gain of protons 4. In the following reaction, which element is oxidized? Cu+ FeSO4 Fe+ CuSO4 a Cu e. None, this is not a redox reaction. c. SExplanation / Answer
6) We know, delta G = - RTlnKeq
So if the delta G is a large negative value then Keq will be very very large. Hence (I) is corect. Now we know
Keq=[Products]eq/[Reactants]eq
If Keq is large then [Products] is large meaning reaction highly favors products hence (III) is also correct.
4) When you take an elemental metal then by default its oxidation state is 0. Hence oxidation state of Cu is zero in reactant. Now we know SO4 has charge of 2-, hence Cu mst have +2 charge. Hence we know Cu is in +2 oxidation state. Like wise for Fe also.
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