Which out of molality, molarity and mole fraction of a solution will remain unchanged on raising the temperature and why?

Mole fraction of a solute in 2.5 molal aqueous solution is

Mole fraction of a solution in 1.00 molal aqueous solution is

Assertion: For calculating the molality or the mole fraction of solute, if the molarity is known, it is necessary to know the density of the solution. Reason: Molality, molarity and the mole fraction of solute can be calculated from the weight percentage and the density of the solution.

The mole fraction of a solute in its one molal aqueous solution is :

The mole fraction of the solute in one molal aqueous solution is:

Why molality is preferred over molarity of a solution ?

Out of molarity (M), molality (m), normality (N) and mole fraction (x), those independent of temperature are

Which out of molarity or molality will change with change in temperature and why ?