Why is sublimation of iodine an example of physical change?

1 Answer
anor277
Mar 27, 2018

Because physical changes are largely changes of state...

Explanation:

i.e. #"liquid "rarr" gas"#; #"solid "rarr" liquid"#; etc.

And here we gots...

#I_2(s) stackrel(Delta)rarrI_2(g)#...

...no chemical bonds are broken....and the diiodine molecule is retained as a discrete entity.. One the other hand chemical change is characterized by the making and breaking of strong chemical bonds, and the formation of new substances.

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