Chapter 6
THERMODYNAMICS
1. A Thermodynamics state function is quantity
Ans:- whose value independent of path
2. For the process to occur adiabatic condition, the currect condition is
Ans:- g= 0
3." Out of diamond and graphite .diamond are grater entropy " state whether this statement true or False
Ans:- False, out of diamond and graphite graphite has greater entropy. Because of the presence of layers which are loosely
Packed are compare to diamond
4. A reaction A+ B + C+D+Q formed to have a positive entropy change .The reaction will be
Ans:- possible at any temperature
5. The heat absorbed in a constant volume process is equal to system's change
Ans:- entropy × temperature
6. The enthalpies of all elements in their standard states are
Ans:- 0
7. UP of combustion of methane is X kj/mol
The value of delta H°
Ans:- >delta U°
8. Observe the relationship between the first two term and filling the blank
Isotherm process: delta s = 2.303 log( T2/T1)
Isobaric prosess:
Ans:- delta s = 2.303 cup log T( T2/T1)
9. Choose the correct pair
a. A liquid veparises s= positive
b. Reversible expansion of an ideal gas s= negative
Ans:- A liquid veparises s= positive
10. Select the odd one of the following sets
a. Temperature, pressure, mass, density
b. Internal energy, work enthalpy, entropy
Ans:-
a. Mass
b. Work
11. State Hess's law
Ans:- Hess's law state that, the enthalpy of a reaction will be the same whether it take place in one step several steps
12. What is the relation between standard free energy change and cell
Ans:- delta G theta = - nFEcell
13. Why does the entropy of a solid incase
Open fusion ?
Ans:- upon fusion ,solid changes to liquid and in their later the entropy of the particle is higher
14. Unit of entropy
Ans:- Jk -1 mol -1
15. Difind the Gibbs energy
Ans:- Gibbs energy may be difind as the amound of energy available
For doing useful work under condition of constant temperature and pressure
THERMODYNAMICS
1. A Thermodynamics state function is quantity
Ans:- whose value independent of path
2. For the process to occur adiabatic condition, the currect condition is
Ans:- g= 0
3." Out of diamond and graphite .diamond are grater entropy " state whether this statement true or False
Ans:- False, out of diamond and graphite graphite has greater entropy. Because of the presence of layers which are loosely
Packed are compare to diamond
4. A reaction A+ B + C+D+Q formed to have a positive entropy change .The reaction will be
Ans:- possible at any temperature
5. The heat absorbed in a constant volume process is equal to system's change
Ans:- entropy × temperature
6. The enthalpies of all elements in their standard states are
Ans:- 0
7. UP of combustion of methane is X kj/mol
The value of delta H°
Ans:- >delta U°
8. Observe the relationship between the first two term and filling the blank
Isotherm process: delta s = 2.303 log( T2/T1)
Isobaric prosess:
Ans:- delta s = 2.303 cup log T( T2/T1)
9. Choose the correct pair
a. A liquid veparises s= positive
b. Reversible expansion of an ideal gas s= negative
Ans:- A liquid veparises s= positive
10. Select the odd one of the following sets
a. Temperature, pressure, mass, density
b. Internal energy, work enthalpy, entropy
Ans:-
a. Mass
b. Work
11. State Hess's law
Ans:- Hess's law state that, the enthalpy of a reaction will be the same whether it take place in one step several steps
12. What is the relation between standard free energy change and cell
Ans:- delta G theta = - nFEcell
13. Why does the entropy of a solid incase
Open fusion ?
Ans:- upon fusion ,solid changes to liquid and in their later the entropy of the particle is higher
14. Unit of entropy
Ans:- Jk -1 mol -1
15. Difind the Gibbs energy
Ans:- Gibbs energy may be difind as the amound of energy available
For doing useful work under condition of constant temperature and pressure
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