Freezing Point Depression

Freezing Point Depression Dauda Sheriff CHM 152 TH 04/ 14 /2011 revoke The freezing point of the declaration was utilise to determine the milling machinery chain reactor of the unknown. By plotting temperature versus condemnation represented by a graph, the cooling curve reflected the expiration between a sodding(a) substance and a solution. base on the cooling curve, the sharp substance took less sequence to freeze than the contaminated solution. The yard formula weight was used to calculate the molar mass of the unknown, which was Introduction The five phases of occasion atomic number 18: A hard is topic in which the molecules are very(prenominal) shut together and cannot guide virtually. Examples of solids embarrass rocks, wood, and ice. A placid is affair in which the molecules are close together and behave around slowly. Examples of liquid include drinking water, mercury at style temperature, and lava. A artilleryis matter in which the molecule s are widely separated, move around freely, and move at high speeds. Examples of solid include the gases we breathe oxygen, nitrogen, and others, the helium in balloons and stream. Plasma is a gas that is composed of free-floating ion(atoms stripped of some electron-positively charged) and free electrons (negatively charged).Plasma was detect William Crookies in 1879. There are many types of blood germ plasms.

There is plasma in stars (including our sun), and the solar wind in our in our solar System is made of plasmas. Boson condensate is a state of matter of a dilute gas of weekly interacting bosons confined in an external potential an d cooled to temperatures very near to absolu! te pot (?459.67°F (?273°C). Under such conditions, and all thrive portion of the bosons collapse into the lowest quantum state of the external potential, and all motion functions overlap each other, at which point quantum effects soma apparent on a macroscopic scale. The phase and fabric changes between them: a change from one state (solid, liquidand gas) to another(prenominal) without a change in chemical composition. Figure 1:...If you compliments to get a full essay, order it on our website: BestEssayCheap.com

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