GK
CHEMISTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Deposition
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Sublimation
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Either A or B
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None of the above
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Detailed explanation-1: -Sublimation: The process of changing of solid directly into the gaseous state without passing through the liquid state on heating’ is known as sublimation. The solid substance which undergoes sublimation is known as sublime whereas the substance obtained by cooling the vapors of solid is known as sublimate.
Detailed explanation-2: -Sublimation is a type of phase change that takes place when a solid turns directly into a gas, skipping the liquid phase. The opposite of sublimation is vapour deposition. The term “sublimation” only applies to a physical change of state and not to the transformation of a solid into a gas during a chemical reaction.
Detailed explanation-3: -Sublimation is the transition of a substance directly from the solid phase to the gas phase without passing through the intermediate liquid phase (Table 4.8, Fig. 4.2). Sublimation is an endothermic phase transition that occurs at temperatures and pressures below the triple point of a chemical in the phase diagram.
Detailed explanation-4: -Sublimation is the transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.