DeltaG represents the.... instantaneous measurement of the change in free energy

Question

DeltaG represents the.... instantaneous measurement of the change in free energy electrochemical potential of a cell that has almost been consumed reaction quotient for a reaction driving force acting on a chemical reaction when the species are all at standard state symbol carved on a round wooden door to indicate the beginning of a quest Sate whether the following statements are true or false DeltaG is equal to DeltaGdegree when the system is at the standard state. DeltaG is zero when the system is at equilibrium. DeltaG measures how far the reaction is from equilibrium. When DeltaG is negative, the reaction should proceed forward to form more product. Which of the following experimental conditions describe a reaction which is kinetically controlled? DeltaG = + 100 kJ/mol_rxn; there is no observable reaction when reactants are mixed. DeltaG = -100 kJ/mol_rxn; there is no observable reaction when reactants are mixed. DeltaG = + 100 kJ/mol_rxn; the reaction proceeds rapidly when reactants are mixed. DeltaG = -100 kJ/mol_rxn; the reaction proceeds rapidly when reactants are mixed. These conditions do not describe kinetic control. Kinetics refers to the study of. the speed and mechanisms of chemical reactions the change in disorder for a chemical process the difference in enthalpy for a chemical process the combined effects of entropy and enthalpy for a chemical reaction a chemistry instructors extra funky dance moves

Explanation / Answer

1. A.   

An instantaneous measurement of free energy is gibbs free energy

2. a) True,

b) True,

c) False, The magnitude G measures how far reaction is from equilibrium. delta G measures how far standard state is from equilibrium.

d) True, if delta G<0, reaction is spontaneous.

3. d) Quickly said, the kinetic product is the one that forms the fastest and the thermodynamic product is the most stable. Here delta G = -100 kj/mol. reaction occurs instantly when reactants are mixed is a kinetically controlled reaction.

4. A kinetics refers to different experimental conditions that influence speed and mechanism of chemical reactions.

5. Ti2+ + 2e- ----> Ti(s) E0red = -1.63 V

H2 + 2OH- -----> 2H2O + 2e-   E0oxid = -(-0.8227 V) = 0.8227V

Ecell = E0oxid - E0red = 0.8227-(-1.63) = 2.4527V

We know,

delta G = nFE0cell

=> delta G >0 as E0cell >0, which means electrolysis do not occur

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.