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The standard electrode potentials of Zn2+/Zn & Ag+/Ag are -0.77V & 0.80V respectively.The standard potential of the cell is ...
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The voltage of a cell whose half cells are given below Mg2++2e-1→Mg(s) ; E=-2.37V Cu2++2e-1→Cu(s) ; E=0.34V ...
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Which of the following solution can be safely stored in a copper vessel? ...
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Which one of the following is easily reduced? ...
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Out of Cu, Ag, Fe & Zn, the metal which can displace all others from their salt solution is ...
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Calculate the standard free energy change for the reaction, 2Ag+2H+→H2+2Ag+ E° for Ag++e-→Ag is 0.80V ...
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The emf of the cell Mg|Mg2+(0.01M)||Sn2+(0.1M)|Sn at 298 K is (given E°Mg2+,Mg=-2.34V, E°Sn2+,Sn=-0.14V) ...
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The emf of a cell is related to the equilibrium constant of the cell reaction as ...
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reduction potential of an electrode ...
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For the reaction A(s)+2B+(aq)→A2+(aq)+2B(s) Nerst eqn. for the emf of the cell is ...
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The electrode potential of a half cell depends upon ...
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A cell reaction is given as anode: Zn(s)→Zn2+(aq)+2e- E°=0.76V cathode: Cu2+(aq)+2e-→Cu(s) E°=0.34V Find the standard electrode potential for the cell ...
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Which one of the following represents a standard hydrogen electrode? ...
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standard electrode potential is the electrode potential at ...
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The electrode potential of an electrode is ...
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Which of the following is not a function of a salt bridge? ...
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A cell reaction is given as anode: Zn(s)→Zn2+(aq)+2e- cathode: Cu2+(aq)+2e-→Cu(s) it can be represented as ...
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Which of the following may not be present in all galvanic cells? ...
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Which one of the following is is incorrect regarding an electrochemical cell? ...
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Find ΔG when 1 mol of water at 100°C and 1 atm pressure is converted into steam at 100°C and 1 atm pressure. ...
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For a reaction, ΔG=x kJ/mol & for another reaction ΔG=y kJ/mol. Former is non-spontaneous while along with later it is spontaneous. This implies ...
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for exothermic reaction & ΔS positive, the reaction is spontaneous at temperature of ...
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Which of the following describes the criterion of spontaneity? ...
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A reaction has both ΔH & ΔS negative. The rate of reaction ...
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In any natural process ...
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Given the following entropy values (J mol-1 K-1) at 298 K and 1 atm: H2(g):130.6 Cl2(g):223.0 HCl(g):186.7 The entropy change for the reaction H2(g)+Cl2(g)→2HCl(g) is ...
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The enthalpy of vaporisation of a substance is 840 J mol-1 and its boiling point is 27°C. Find the entropy of vaporisation ...
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2 mol of an ideal gas at 27°C temp. is expanded reversibly from 2 litres to 20 litres. Find the entropy change (R=2cal/mol K) ...
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for the reaction 2SO2(g)+O2(g)→2SO3(g) the entropy ...
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Entropy change of a system and its surroundings in equilibrium ...