Purification of nickel can be achieved by electrorefining nickel from an impure nickel anode onto a pure nickel cathode in an electrolytic cell. How many hours will it take to plate 18.5 kg of nickel onto the cathode if the current passed through the cell is held constant at 35.5 A

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

what is the question here. i think you messed up.

1 is the answer to this problem