Exercise: Thermodynamics And Free Energy

Questions for: Thermodynamics And Free Energy

The unfolding of regular secondary structure causes
A:
little increase in the entropy of protein
B:
large decrease in the entropy of the protein
C:
no change in the entropy of the protein
D:
large increase in the entropy of the protein
Answer: D
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If the Standard Gibb's free energy, ΔG°, for a reaction is positive then
A:
the products will be favored
B:
the reactants will be favored
C:
the concentration of the reactants and products will be equal
D:
all of the reactant will be converted to product
Answer: B
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The Standard Gibb's free energy, ΔG°, is
A:
the residual energy present in the reactants at equilibrium
B:
the residual energy present in the products at equilibrium
C:
the difference in the residual energy of reactants and products at equilibrium
D:
the energy required to convert one mole of reactants to one mole of products
Answer: D
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Reactions that have positive standard free energy changes (ΔGo> 0) can be made to occur in cells by
A:
coupling them with exergonic reactions via a common intermediate
B:
manipulating the concentrations of products and reactants such that G/<0
C:
coupling them to the hydrolysis of ATP
D:
all of the above
Answer: D
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If the enthalpy change for a reaction is zero, ΔG° is equal to
A:
TΔS°
B:
-TΔS°
C:
-ΔH°
D:
lnKeq
Answer: B
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