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Question
Sublimation is _____ [considered/not considered] a change of state of matter.
Sublimation is _____ [considered/not considered] a change of state of matter.
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Solution
(1) Sublimation is defined as the conversion of solid directly into a gaseous [vapour] state and on cooling directly back to solid-state without changing into the liquid state. Examples: naphthalene,iodine,etc.
(2) Since, sublimation involves a change of state and hence it is a physical change.
Therefore, sublimation is considered a change of state of matter.
(1) Sublimation is defined as the conversion of solid directly into a gaseous [vapour] state and on cooling directly back to solid-state without changing into the liquid state. Examples: naphthalene,iodine,etc.
(2) Since, sublimation involves a change of state and hence it is a physical change.
Therefore, sublimation is considered a change of state of matter.
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