Corrosion Engineering Modern Theory Principles Thermodynamics 1 Online Exam Quiz
Corrosion Engineering Modern Theory Principles Thermodynamics 1 GK Quiz. Question and Answers related to Corrosion Engineering Modern Theory Principles Thermodynamics 1. MCQ (Multiple Choice Questions with answers about Corrosion Engineering Modern Theory Principles Thermodynamics 1
What is the overall standard cell potential of a given Cu-Fe system?
Options
A : +0.78V
B : -0.14V
C : -0.78V
D : +0.14
What is the change in Gibb’s free energy of a Cu-Zn system with a cell potential of 1.10V?
Options
A : -11.13 KJ/mol
B : +21.23 KJ/mol
C : +11.13 KJ/mol
D : -21.23 KJ/mol
Which of the following is/are the applications of modern electrode kinetic principles?
Options
A : Anodic protection
B : Noble metal alloying
C : Methods to measure corrosion rates rapidly
D : Anodic protection, noble metal alloying and methods to measure corrosion rates rapidly
What is the direct measure of work capacity or electrical energy available from a system?
Options
A : Change in enthalpy
B : Change in Gibbs free energy
C : Reaction time
D : Concentration of reactants
Which of the following metal is used as a solid interface for hydrogen gas in the standard hydrogen electrode?
Options
A : Copper
B : Zinc
C : Gold
D : Platinized platinum
What are the cathodic and anodic reactions respectively of a given Cu-Zn system?
Options
A : Cu==>Cu+2+2e and Zn+2+2e==>Zn
B : Cu+2+2e==>Cu and Zn==>Zn+2+2e
C : Cu==>Cu+2+2e and 2Zn+1+2e==>2Zn
D : Cu+2+2e==>Cu and 2Zn==>2Zn+1+2e
What is the Nernst equation for chemical reaction nA + mB ==> pC + qD at temperature T?
Options
A : E=E0+2.3(RT/nF)log{([A]n+[B]m)/([C]p+[D]q)}
B : E=2.3(RT/nF)log{([A]n+[B]m)/([C]p+[D]q)}
C : E=E0+2.3(RT/nF)log{([n]A+[m]B)/([p]C+ [q]D)}
D : E=2.3(RT/nF)log{([n]A+[m]B)/([p]C+ [q]D)}
The change in Gibbs free energy is a path function and it is independent of the state of the system.
Options
A : False
B : True
C :
D :
Which of the following is true, if the transition of a system results in positive Gibbs free energy change?
Options
A : It is a spontaneous reaction
B : Free energy of products is less
C : It is a non-spontaneous reaction
D : Free energy of reactants is more
Which of the following is a spontaneous reaction?
Options
A : Production of ammonia
B : Corrosion of metals
C : Photosynthesis reaction
D : Generation of oxygen from water
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