Boojho has often noticed that road
construction workers heat a black
material (tar) for repairing a road
He wants to know whether the
change caused in tar, by
heating, can be reversed?
Answers
Answered by
0
Answer:
no it cannot it is a irreversible change
kisandhekane:
ok
Answered by
4
Answer:
when coal tar is heated it melted it melts and form a thick dark liquid and again it solidifies on cooling
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