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| style="height:20px; width:600px; text-align:left;" |The [[particle]]s in the [[solid]] [[vibrate]] faster until they are moving fast enough that they break the [[bond]]s holding the [[particle]]s together. The [[particle]]s become free to move anywhere which makes the [[State of Matter|state]] a [[gas]].
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==Key Stage 4==
===Meaning===
[[Subliming]] is an [[endothermic]] [[Physical Change|physical change]] in which a [[solid]] turns into a [[gas]] without going through a [[liquid]] [[State of Matter|phase]].
===About Subliming===
: [[Subliming]] happens when the [[particle]]s in a [[solid]] break [[bond]]s holding them together in fixed positions as they gain [[Potential Energy|potential energy]].
: [[Subliming]] is an [[endothermic]] process, which means it needs to [[Absorb (Physics)|absorb]] [[energy]] to take place.
: [[Subliming]] is a [[Physical Change|physical change]], which means it is [[Reversible Changes|reversible]] and does not produce new [[chemical]]s.
: [[Substance]]s may [[sublime]] depending on the [[pressure]] around them. In [[Atmospheric Pressure|atmospheric pressure]] (101,000[[Pa]]) [[Carbon Dioxide]] and [[Iodine]] will both [[sublime]] and cannot exist in a [[liquid]] [[State of Matter|state]]. However, under extremely high [[pressure]] [[Carbon Dioxide]] can be turned into a [[liquid]].
: [[Ice]] will [[sublime]] in a [[vacuum]] but not in normal [[Atmospheric Pressure|atmospheric pressure]].