The freezing point of a substance is always lower than its?

Question

A. melting point
B. heat of vaporization
C. boiling point
D. heat of fusion

Answer 1

C

Answer 2

The answer is C. Choices B and D do not even make sense because heat of vaporization and heat of fusion are not "points." They are the energy required to cause a substance to boil and melt respectively and are measured in KJ/gram or J/gram. So you cannot compare temperatures to energy per mass unit, which makes A and C the only possible answer choices. So in conclusion, freezing point is lower than boiling point,. but not lower tjhan melting because freezing/melting point is the same temperature for a substance.

Answer 3

Melting point is going from solid to liquid, freesing point is going from liquid to solid - they are the same thing.

heat of vapourisation and heat of fusion are not temperature points, they are physical properties

The boiling point is the temperature at whci something goes from liquid to gas.

Phase transitions occur in the following order, where temperature is increasing:

solid = frozen state
solid to liquid = melting (or freezing in reverse!)
liquid to gas = boiling point (or condensing in reverse!)

As temperature increases you go from solid to liquid to gas. The answer is C: the freesing point of a substances is always lower than its boiling point.

Answer 4

A. Melting point
Why? The sequence is first freezing, then melting, then boiling, and then vaporization, in order of increasing entropy.

Answer 5

All of the above.

(Except maybe A, melting and freezing points could be the same thing)

Answer 6

c


iIf its going to be cold than it needs to be lowwwww. Boiling points are always high


Hope this helps!~

Answer 7

c

Answer 8

A