theblackalchemist Posted May 28, 2007 Report Posted May 28, 2007 here's a nice game to playwell i'll start by giving a paragraph and you have to make as many questions as possible(try not to reverse the words and make another question) and the person with the most questions wins the gameTBA Quote
theblackalchemist Posted May 28, 2007 Author Report Posted May 28, 2007 here's the 1st para BOILING POINTS AND STRUCTURES OF HYDROCARBONS The boiling points of organic compounds can give important clues to other physical properties. A liquid boils when its vapor pressure is equal to the atmospheric pressure. Vapor pressure is determined by the kinetic energy of molecules. Kinetic energy is related to temperature and the mass and velocity of the molecules. When the temperature reaches the boiling point, the average kinetic energy of the liquid particles is sufficient to overcome the forces of attraction that hold molecules in the liquid state. Then these molecules break away from the liquid forming the gas state. Vapor pressure is caused by an equilibrium between molecules in the gaseous state and molecules in the liquid state. When molecules in the liquid state have sufficient kinetic energy, they may escape from the surface and turn into a gas. Molecules with the most independence in individual motions achieve sufficient kinetic energy (velocities) to escape at lower temperatures. The vapor pressure will be higher and therefore the compound will boil at a lower temperature. [/Quote] Cedars 1 Quote
theblackalchemist Posted June 3, 2007 Author Report Posted June 3, 2007 OK... why int there any reply ? does any one need a better paragraph?TBA Quote
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