explain these three questions with answers . explain these two questions with an

Question

explain these three questions with answers
.

explain these two questions with answers

7. When a cell reaction reaches equilibrium, (A) 0. (B) E=0. (C) both E and E-. (D) neither nor E-0. 8. Mass defect is the mass lost when Anower (A) an atom is formed from individual protons, neutrons, and electrons (B) a nucleus is forned from individual protons and neutrons (C) electrons are removed from an atom. (D) electrons are added to an atom Answer 9. For a reaction at constant temperature, as Q increases (A) (B) (C) (D) G and Ge increase. G and G° decrease. G increases, but Go remains constant. G decreases, butaG" remains constant.

Explanation / Answer

7.

when there is equilibrium

then

Ecell = E°cell, since

Ecell = E°cell - 0.0592/n*log(Q)

when Q = 1, that is, equiplibrium, Ecell reduces to ECell = E°cell

8.

the mass difference between a nisotope and its mass

9.

as Q increases, this means products increasses, therefore the reaciton goes forward

then

G = G° + RT*lnQ

then, G increases

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