What is the relationship between equivalent conductance and specific conductance?

Answer:

ΛE = 1000×Kc.
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What is the efficiency of fuel cell? What is the use of fuel cell?

Answer:

The efficiency of fuel cell is 83.3%. Fuel cell is used in space vehicles. 
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What does the standard electrode potential of a metal being negative (EZn2+/Zn = -0.763 V) indicate?

Answer:

The negative value of reduction electrode potential indicates that the oxidation will take place at zero electrode.
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Write the correct representation of cell:
2Cr(s) + 3Cd2+ (aq) → 2Cr3+ (aq) + 3Cd(s)

Answer:
The correct representation of cell:
Cr(s) | Cr
3+ (aq) || Cd2+ (aq) | Cd(s)
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What is the role of the salt bridge in a voltaic cell?


Answer:

salt bridge allows the flow of ions to maintain a balance in charge between the oxidation and reduction vessels while keeping the contents of each separate. With the charge difference balanced, electrons can flow once again, and the reduction and oxidation reactions can proceed.
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