Standard free energies of formation (in kj/mol) at 298 K are -237.2, -394.4 and -8.2 for…?.Aluminium displaces hydrogen from dilute HCl whereas silver does not.CuSO 4 solution is electrolysed for 15 minutes to deposit 0.4725g of copper at the cathode…?.What is X in the following reaction? KHSO 4+F 2→HF+X…?.The chemical equivalent of copper and zinc are 3232 and 108108 respectively.The law of electrolysis were given by…?.The pair of electrolytes that posses same value for the constant (A) in the Debye…?.The number of Faradays(F) required to produce 20g of calcium from molten…?.The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere…?.A current of 2.0A passed for 5 hours through a molten metal salt deposits 22.2g of metal…?.In producing chlorine through electrolysis 100W power at 125V is being consumed.A 100.0mL dilute solution of Ag+ is electrolysed for 15.0 minutes with a current of…?.Which among the following is correct for electrolysis of brine solution?.When electric current is passed through acidified water for 1930s,1120mL of H 2 gas is collected…?.It usually has a strong electrolyte that is further formed of ions. Salt Bridge can be understood as a junction connecting the anode and the cathode compartment in an electrolytic solution. It is used in electrochemical cells for connecting the oxidation and reduction half cells where a weak electrolyte is used. It is responsible for maintaining electrical neutrality in the two-compartment of the Daniell cell. Salt Bridge is a glass tube consisting of ammonium nitrate or potassium chloride in gelatin form. Originates from external sources such as a battery The cathode is negative.Įlectrical energies are caused by internal Chemical reactions.Īn external source is required for the production of Chemical reactions. The cathode is the positively charged part. The following table discusses the differences at a glance:Įlectricity can be produced with the help of chemical reactions.Įlectric currents are used for chemical reaction transmission.Ĭonverts chemical energy into electrical ones and vice-versa.Įlectrical energy gets transformed into chemical energy. Daniell cell can be represented as Zn | Zn 2+(aq) | | Cu 2+(aq) | Cu where the “| |” represents the salt bridge, the left side symbolizes oxidation process, and the right one pertains to the reduction of half-cell.ĭifference between Daniell Cell and Electrolytic CellĮlectrochemical cells can be divided into two main types:.The salt bridge completes the entire circuit. Electricity is produced as a result of this particular flow in the opposite direction of the electrons travelling from cathode to anode. The electrons released by the zinc at the anode reach the cathode through an interconnecting metal wire.At the cathode, those copper ions get transformed into copper metal and further get deposited.
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