Cryogenic decrease: depression of the melting point to the decrease of the freezing point temperature which undergoes a dissolution with respect to that of the pure solvent.All the solutions in which, upon cooling, the solvent solidifies, have a freezing temperature lower than the pure solvent.
Thermal equilibrium : if there are no net flow of thermal energy between them when they are connected by a path permeable to heat. Thermal equilibrium obeys the zeroth law of thermodynamics. A system is said to be in thermal equilibrium with itself if the temperature within the system is spatially and temporally uniform.
STEPS :
-we pour water on glass.
-we put the ice cube on water and the thread in ice cube.
-we pour the salt on the thread and we wait a time.
-when we had been wait a long time, we catch the thread and the ice cube will be
-we put the ice cube on water and the thread in ice cube.
-we pour the salt on the thread and we wait a time.
-when we had been wait a long time, we catch the thread and the ice cube will be
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