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Black Tungsten
What is the phase transition in each of the following?
a. Mothballs slowly become smaller and eventually disappear
b. Rubbing alcohol spilled on the palm of the hand feels cool as the volume of the liquid decreases
c. A black deposit of tungsten metal collects on the inside of a light bulb whose filament is tungsten metal
d. Raindrops hit a cold metal surface, which becomes covered with ice
e. candle wax turns to liquid under the heat of the candle flame
Please explain. Thanks!!!
a)…Sublimation. (Solid directly to Vapour).
b)…Evaporation. (or Vaporisation). (The IPA requires the heat energy, this is taken from the skin causing cooling).
c)…Deposition. (Of molecules of Gaseous tungsten to solid).
d)…Freezing. (Or Solidification).
e)…Fusion. (Or Melting).
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Accu Sharp 060 GardenSharp Tool Sharpener $5.96 The GardenSharp tool sharpener is designed to sharpen all those single edged, hard to sharpen items in your tool shed, such as lawnmower blades, pruning shears, limb loppers, hoes, shovels, and scythes. All can be sharpened to a razor edge quickly and easily. The full length finger guard protects fingers while the reversible diamond honed tungsten carbide blade puts your cutting edge in “good as n… |
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Pelikan Giant Refill 337 Medium Black $7.00 The medium black Pelikan giant refill 337 has a solid tip of stainless steel and a tungsten carbide ball…. |
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Men’s Gladiator Magnetic Black Tungsten Carbide Golf Bracelet … |
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Pelikan Giant Refill 337 Broad Black $7.00 The broad black Pelikan giant refill 337 has a solid tip of stainless steel and a tungsten carbide ball…. |
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Arachnid Interactive 3000 Soft-Tip Dart Game $69.90 The Interactive 3000 features a 13″ target area with an 8-player LED score display. The game also features the popular Heckler and two LED cricket score boxes. There are 27 games and 123 options available on this unit. Traditional Arachnid colors make this board a great addition to any rec room. The board includes six soft-tip darts and extra tips. The Interactive 3000 comes with a one-year warran… |
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