The energy involved in change of state
1 mark · EasyState what happens to the temperature of a substance during melting, while it is still being heated.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
The temperature remains constant during melting.
Also accept: Temperature does not change during melting.; It stays the same until all the substance has melted.
Common mistakes: Temperature increases during melting.
Show mark scheme and worked solution
Marking points
B1 · 1 mark · States that temperature remains constant during melting
Worked solution
During melting, the temperature remains constant even though heat is supplied. The energy goes into breaking intermolecular forces instead of increasing temperature.