Análisis sobre terremotos en Argentina. Información sacada de INPRES. Incluye datos de profundidad, magnitud, latitud, longitud y zona ordenados según fecha y hora. Ademas, la magnitud de los sismos esta dividida con colores: verde (valores menores o iguales a 2,5), azul (valores mayores a 2,5 y menores a 5) y rojo (valores mayores o iguales a 5). También está resaltado con fondo rojo y fuente color blanca los valores de la profundidad que están por encima del promedio. Están los valores mínimos, máximos y el promedio para Profundidad y Magnitud. Esta la cantidad de sismos que superaron (en profundidad e intensidad) la media y la cantidad de días a partir del día hoy en que tuvo lugar el sismo de mayor intensidad. Por último, hay un cuadro con la cantidad de sismos por sector. Realice este trabajo con Luna Rosenman.
jueves, 23 de mayo de 2019
jueves, 9 de mayo de 2019
water properties
1)
A) The diference between evaporation and boiling is that when it is evaporating the molecules that rise are the ones at the surface, as they dont have the same amount of intermolecular bonds, they have fewer as they do not have molecules at the top to conect with. At the boiling point the molecules of the middle began to have more cinetic energy as the temperature rise, so their bonds break and they rise to the surface and evaporate this occurs when the sustance reaches the same preasure that the atmosphere has.
B) the vapour pressure happens when there is a dinamic balance, in a closed system, this is the point in which liquid evaporates and condensates at the same speed; the preassure that generates the vapour agaist the walls and the liquid is called vapour preassure. As the temperature increases, the cinetic energy of its molecules also increase, as the cinetic energy of the molecules increases, the number of molecules transitioning into a vapor also increases, thereby the vapor pressure is higher.
C) Capilarity is the capability of water to climb throw the walls of a narrow tube wich cause an upward force on the liquid at the edges and result in a meniscus which turns upward. The surface tension acts to hold the surface intact. Capillary action occurs when the adhesive forces (particles diferent substance) are stronger than the cohesive (same substace particles) forces between the liquid molecules.
2)
A) The triple point of a substance is the temperature and pressure at which the three states (gas, liquid, and solid) of that substance coexist in equilibrium. It is the temperature and pressure point at which the sublimation curve, fusion curve and the vaporisation curve meet. This hapens when the substance reaches 273,16 K and 4,58 mm.
B) For most substances, increasing the pressure when a system is in equilibrium between liquid and solid phases will increase the melting point. But since water fills a smaller volume when it's liquid, rather than solid, if you have more pressure it will go to a lower melting point allowing more solid to become liquid.
A) The diference between evaporation and boiling is that when it is evaporating the molecules that rise are the ones at the surface, as they dont have the same amount of intermolecular bonds, they have fewer as they do not have molecules at the top to conect with. At the boiling point the molecules of the middle began to have more cinetic energy as the temperature rise, so their bonds break and they rise to the surface and evaporate this occurs when the sustance reaches the same preasure that the atmosphere has.
B) the vapour pressure happens when there is a dinamic balance, in a closed system, this is the point in which liquid evaporates and condensates at the same speed; the preassure that generates the vapour agaist the walls and the liquid is called vapour preassure. As the temperature increases, the cinetic energy of its molecules also increase, as the cinetic energy of the molecules increases, the number of molecules transitioning into a vapor also increases, thereby the vapor pressure is higher.
C) Capilarity is the capability of water to climb throw the walls of a narrow tube wich cause an upward force on the liquid at the edges and result in a meniscus which turns upward. The surface tension acts to hold the surface intact. Capillary action occurs when the adhesive forces (particles diferent substance) are stronger than the cohesive (same substace particles) forces between the liquid molecules.
2)
A) The triple point of a substance is the temperature and pressure at which the three states (gas, liquid, and solid) of that substance coexist in equilibrium. It is the temperature and pressure point at which the sublimation curve, fusion curve and the vaporisation curve meet. This hapens when the substance reaches 273,16 K and 4,58 mm.
B) For most substances, increasing the pressure when a system is in equilibrium between liquid and solid phases will increase the melting point. But since water fills a smaller volume when it's liquid, rather than solid, if you have more pressure it will go to a lower melting point allowing more solid to become liquid.
explained in phase diagram video below, from minute 2,12 to 2,40
3)
A) Viscosity is the resitance that generates a fluid to flow. The stronger the intermolecular bond of the liquid is, the more viscosity it would have, therefore water is more viscous than naphta since its intermolecular bonds are stroner, because water has all 3 intermolecular, but naphta doesnt have hydrogen bond, becuse it is non polar, which makes naphta´s bonds weaker than water´s .
B)For this diagram there will have to be a higher pressure tan 2,1 atm and a higher temperature than 4,5 c.
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