The emf of a standard cadmium cell is 1.01832 V at 298 K. The temperature coefficient of the cell is `-5 times 10^(-5) V K^(-1)`. Calculate `triangleH` of the reaction.

The emf of cells Zn| ZnSO_(4)||CuSO_(4), Cu" at "25^(@)C is 0.03 V and temperature coefficient of emf is 1.4 xx 10^(-4) V per degree. Calculate the heat of reaction for the change taking place inside the cell.

Emf of cell given Ag(s),Ag(s)|KCI(aq)Hg_(2)CI_(2)(s)|Hg(s) s 0.05 V at 300 K and temperature coefficient of the cell is 3.34xx10^(-4) VK^(-1) calculate the change in thapy of the cell

The standard electromitive force of the cell Fe|Fe^(2+)(aq)||Cd^(2+)|Cd is 0.0372 V The temperature coefficient of e.m.f. is -0.125VK^(-1) . Calculate the quantities triangleG,triangleH^(@) and triangleS^(@) at 25^(@)C

At 407 K , the rate constant of a chemical reaction is 9.5xx10^(-5)s^(-1) and at 420 K , the rate constant is 1.9xx10^(-4)s^(-1) . Calculate the Arrhenius parameter of the reaction.

The EMF of the standard weston cadmium cell Cd(12.5%) in Hg|3CdSO_(4),8H_(2)O (solid) | satd. Soln of CdSO_(4)||Hg_(2)SO_(4)(s)|Hg is 1.0180 volts at 25^(@)C and the temperature coefficient of the cell, ((delE)/(delT))_(P)=-4.0xx10^(-5)//"degree" , calculate triangleG triangleH and triangleS for the reactionn in the cell when n=2

The standard electrode potential E^(@) and its temperature coefficient ((dE^(@))/(dT)) for a cell are 2V and -5xx10^(-4) Vk^(-1) at 300K respectively . The cell reaction is Zn(s)+ Cu^(2) (aq)+ Cu(S) . The standard reaction enthalpy Delta_(r) H^(@) at 300 K KJmol^(-1) is : ([use R = 8 JK^(-1)mol^(-1) and F = 96000Cmol^(-1)])

The solubility of AgCl at 298 K is 1.3 xx 10 ^(-5) " mol " L^(-1) Calculate the value of K_(sp) at this temperature.

The temperature coefficient of the cell:Zn∣ ZnCl_2 ∣AgCl(s)∣Ag is +0.001V/K. The entropy change (in J/K) accompanying this reaction, at 298 K is?

In a potentiometer arrangement a cell of emf 1.20 V given a balance point at 30 cm length of the wire. The cell a now replaced by another cell of unknown emf. The ratio of emfs of the two cells is 1.5 , calculate the difference in the balancing length of the potentiometer wire in the two cases

The standard electrode potential E^(Theta) and its temperature coefficent ((dE^Theta)/(d T)) for a cell are 2V and -5xx10^(-4)VK^(-1) at 300 K respectively. The cell reaction is Zn(s)+Cu^(2+)(aq)to Zn^(2+)(aq) +Cu(s) . The standard reaction enthalpy (Delta_(t)H^(Theta)) at 300 K is 4.12 xx10^(x) J//"mol" . Numerical value of x is _________________ [Use R=8JK^(-1)mol^(-1) and F=96,000 C "mol"^(-1) ].