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In the representation of the galvanic cell, the ions in the same phase are separated by a _______.
Concept: Galvanic or Voltaic Cells - Introduction
10.0 grams of caustic soda when dissolved in 250 cm3 of water, the resultant gram molarity of solution is _______.
(A) 0.25 M
(B) 0.5 M
(C) 1.0 M
(D) 0.1 M
Concept: Conductance of Electrolytic Solutions >> Variation of Conductivity and Molar Conductivity with Concentration
Construct a labelled diagram for the following cell:
`Zn|Zn^(2+)(1M)||H^+(1M)|H_(2(g,1atm))|Pt`
Concept: Electrochemical Cells
Write the cell representation and calculate equilibrium constant for the following redox reaction:
`Ni_((s))+2Ag_((aq))^+ (1M)->Ni_((aq))^(2+)(1M)+2Ag_((s)) " at "25^@ C`
`E_(ni)^+`=-0.25V and `E_(Ag)^+=0.799V`
Concept: Redox Reaction
Write any ‘two’ advantages of calomel electrode.
Concept: Relation Between Gibbs Energy Change and Emf of a Cell
Potential of saturated calomel electrode is-
Concept: Relation Between Gibbs Energy Change and Emf of a Cell
Write the Nernst equation and explain the terms involved.
Concept: Nernst Equation - Introduction
Draw neat labelled diagram of electrolytic refining of blister copper
Concept: Electrolytic Cells and Electrolysis - Introduction
The conductivity of 0.02M AgNO3 at 25°C is 2.428 x 10-3 Ω-1 cm-1. What is its molar
conductivity?
Concept: Conductance of Electrolytic Solutions >> Variation of Conductivity and Molar Conductivity with Concentration
What is the ratio of volumes of H2 and O2 liberated during electrolysis of acidified water?
(A) 1 : 2
(B) 2 : 1
(C) 1 : 8
(D) 8 : 1
Concept: Electrolytic Cells and Electrolysis - Introduction
Explain Faraday’s second law of electrolysis
Concept: Electrolytic Cells and Electrolysis - Introduction
Define entropy.
Concept: Spontaneous (Irreversible) Process
Write electrode reaction and net cell reaction for fuel cell. Calculate e.m.f. of the following cell at 25 °C.
Standard reduction potential (SRP) of Zn and Cu are − 0.76 V and 0.334 V respectively
Concept: Batteries >> fuel cell
Write mathematical expression of molar conductivity of the given solution at infinite dilution.
Concept: Conductance of Electrolytic Solutions >> Variation of Conductivity and Molar Conductivity with Concentration
Write cathode and anode reaction in a fuel cell.
Concept: Electrochemical Cells
In the hydrogen-oxygen fuel cell, the carbon rods are immersed in the hot aqueous solution of __
(a) KCl
(b) KOH
(c) H2SO4
(d) NH4Cl
Concept: Batteries >> fuel cell
Draw a neat and labelled diagram of the lead storage battery.
Concept: Galvanic or Voltaic Cells - Introduction
How many faradays of electricity are required to produce 13 gram of aluminium from aluminium chloride solution? (Given: Molar mass of Al = 27.0-gram mol–1)
Concept: Electrolytic Cells and Electrolysis - Introduction
Calculate the internal energy at 298K for the formation of one mole of ammonia, if the enthalpy change at constant pressure is – 42.0 kJ mol-1.
(Given: R = 8.314 J K-1 mol-1)
Concept: Chemical Thermodynamics and Energetic >> First Law of Thermodynamics
How many faradays of electricity are required to produce 6 g of Mg from MgCl2?
Concept: Electrochemical Cells
