WorksheetsPHASE RULE & ELECTROCHEMISTRY
Total questions: 10
Worksheet time: 6mins
Gibbs phase rule for general system:
F =C-P+2
P+F=C-1
P+F=C+1
P+F=C-2
How many phases and components are present in the following systems?
1,2
2,2
2,1
1,1
What is meant by triple point ?
Degree of freedom is three
Three phases are in equilibrium
Three components are in equilibrium
None
What is meant by invariant point ?
Number of phases is zero
Number of component is zero
Degree of freedom is zero
Non of the above
How many phases are present in each of the following systems :
a drop of water placed in a stoppered bottle
a piece of molten ice placed in a beaker covered with a watch glass
mixture of N2, H2 and O2.
1,1,1
1,2,1
2,2,2
2, 2 , 1
THE ELECTRODES IN ELECTROCHEMICAL CELLS
NOODLES AND CATHODE
ANODE AND CRATES
CATHODE AND ANODE
COTHADE AND ONADE
In a redox reaction, the oxidizing agent will
lose electrons and be reduced
lose electrons and be oxidized
gain electrons and be oxidized
gain electrons and be reduced
What is the oxidation state of the carbon in FeCO3?
+2
-2
+4
-4
Given their standard reduction potentials, which of the species is going to be oxidized?
Cu2+/Cu = 0.34V
Zn2+/Zn = -0.76V
Zn
ZnSO4
Cu
CuSO4
Which of the following statements is correct with respect to electrolytic solutions?
Its conductance increases with dilution
Its conductance decreases with dilution
Its conductivity increases with dilution
Its equivalent conductance decreases with dilution
