|
|
 |
|
|
| TGA2:
Notes on animation on A1.3 |
|
 |
LINKS |
 |
|
|
|
|
Melting
Continued
Notes on the animation
showing two lumps of wax melting
 |
The melting point of this candle
wax is 64ºC. It is important for students to realise
that the lump will only melt when it is hot enough,
no matter how big it is. A piece of wax heated to 63ºC
will not melt no matter how long it is kept at that
temperature. Not even a little bit of it will melt until
the temperature reaches 64ºC. In reality, if the
wax used is just one kind of molecule, then the temperature
would be steady throughout the melting process then
would start to rise once all the wax had melted; if
there is a mixture, then the temperature would rise
as the wax melts. |
|
|
|
|
|
| a
Science Enhancement Programme CD-ROM 2005 |
|
user
guide |
| |
|
|
|
|
