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Secondary 1 | Science
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Date Posted: 5 years ago
Views: 990
foreground knowledge:
alcohol turns into alcohol vapour at 78 deg C.
(a)
*draw 12 circles moving at high speeds in various directions, like pinballs [ u can refer to ur txtbk for gas molecules diagram, if u dun get it ]
(b)
After alcohol is heated to 78 deg C, thermal energy breaks the bonds between the liquid molecules and turns them into gas molecules. Gas molecules move randomly at high speeds in various directions.
...
alcohol turns into alcohol vapour at 78 deg C.
(a)
*draw 12 circles moving at high speeds in various directions, like pinballs [ u can refer to ur txtbk for gas molecules diagram, if u dun get it ]
(b)
After alcohol is heated to 78 deg C, thermal energy breaks the bonds between the liquid molecules and turns them into gas molecules. Gas molecules move randomly at high speeds in various directions.
...
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Date Posted:
5 years ago
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