Select the correct statement from the following: A beaker of hot water will evaporate faster than a similar beaker of cold water. The particles of a liquid with the most energy are least likely to evaporate from the liquid. Evaporation of a liquid from a surface e.g. sweating, will cause an increase in temperature.
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The preferred alloy composition for zinc-nickel plating is 12 â 15% nickel, with the remainder being zinc.This alloy gives exceptional sacrificial corrosion resistance and can be readily passivated. To achieve this alloy, zinc-nickel is usually plated from an alkaline electrolyte.For some applications, including the plating of brake castings, acid zinc-nickel can be used.inally a topcoat can be applied to the zinc-nickel plating and trivalent passivation coatings. The choice of topcoat depends on the application. Advantages of topcoats include: 1  Predictable torque and tension characteristics. 2  Improved corrosion resistance after post-plating deformation operations.