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.

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.