Las temperaturas de fusión y ebullición del agua utilizadas en las escalas de temperatura son valores que es importante indicar el valor que corresponden a una presión de 1atm. ¿Por qué crees que es importante indicar el valor de la presión?

Suppose that you have water in a metallic bowl.

Now, you start heating the water until it reaches the boiling point.

At this point the water starts transitioning from liquid phse to gas phase, now, you need to think this as the kinetic energy of the water increases to the point where it is stronger than the pressure and it can "escape" the liquid mass.

Then, if we increase the pressure, the temperature needded to escape (to change of phase) also needs to increase.

A more "thermodinamical" way to explain it, is that we can define a curve P(T) of transitions, and we also can define a curve T(P) (the inverse)

So for different values of Pressure, we should see different values of temperature for the changes of phase.

their crystal patterns have been disrupted by stress

so here is the information for current research:

-nrel's geothermal analysts, scientists, and engineers perform a full range of research from developing advanced methods of locating and accessing geothermal resources to exploring innovative technologies to extract and produce clean energy from the heat of the earth

and here is the information for the technology of geothermal energy:

-it's clean and sustainable

-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

-almost everywhere, the shallow ground or upper 10 feet of the earth's surface maintains a nearly constant temperature between 50° and 60°f (10° and 16°c)

-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water