Questions and answers for exam Preparation

MCQs

Total Questions : 244 | Page 2 of 25 pages

Question 11. If enthalpy change for a reaction is zero, then ∆G° equals to

-T∆S°
T∆S°
-∆H°
lnkeq

Discuss Question

Answer: Option A. -> -T∆S°
Answer: (a).-T∆S°

Question 12. For a reaction if ∆G° is positive, then

The products will be favored
The reactants will be favored
The concentration of the reactants and products will be equal
All of the reactant will be converted to products

Discuss Question

Answer: Option B. -> The reactants will be favored
Answer: (b).The reactants will be favored

Question 13. The study of energy relationships and conversions in biological systems is called as

Biophysics
Biotechnology
Bioenergetics
Microbiology

Discuss Question

Answer: Option C. -> Bioenergetics
Answer: (c).Bioenergetics

Question 14. Unfolding of regular secondary protein structure causes

Large decrease in the entropy of the protein
Little increase in the entropy of protein
No change in the entropy of the protein
Large increase in the entropy of the protein

Discuss Question

Answer: Option D. -> Large increase in the entropy of the protein
Answer: (d).Large increase in the entropy of the protein

Question 15. ∆G° is defined as the

Residual energy present in the reactants at equilibrium
Residual energy present in the products at equilibrium
Difference in the residual energy of reactants and products at equilibrium
Energy required in converting one mole of reactants to one mole of products

Discuss Question

Answer: Option D. -> Energy required in converting one mole of reactants to one mole of products
Answer: (d).Energy required in converting one mole of reactants to one mole of products

Question 16. Which of the following statements is false?

The reaction tends to go in the forward direction if ∆G is large and positive
The reaction tends to move in the backward direction if ∆G is large and negative
The system is at equilibrium if ∆G = 0
The reaction tends to move in the backward direction if ∆G is large and positive

Discuss Question

Answer: Option D. -> The reaction tends to move in the backward direction if ∆G is large and positive
Answer: (d).The reaction tends to move in the backward direction if ∆G is large and positive

Question 17. What is the relationship between ∆G and ∆G‘°?