10.The chemicals absorb heat and make category to lower temperatures (Endothermic chemicals). These chemicals when moisture absorbent, the reaction causes the lower temperature. We use these chemicals to achieve efficiency in absorbing moisture, laeoklai's solution concentrated. Concentrate temperature lower than the temperature condensing which can cause higher condensing efficiency and growth of the grain in the cloud is large and the heat released from the condensing will cause mass floating up the air and cause, for example, distillation process.Anueang in addition, the movement of grain and water, growing larger, would feed on the condensing process fat and water difference of grain movement growing up until around the large surface tension (Surface tension) can not be fixed size or agree to draft t clash.Float. Large water beads the beads themselves are small size increases the kaenklan water solution at a concentration of floating back up lots of new growth. And growing up is a large grain until the rain fall, or become different, for example, a chain reaction. Such a mechanism or process to expand the size of the cloud and increase the volume to a higher current (Rain enhancement) operating these types of chemicals are used are 3: (1) urea (Urea Co (NH2) 2;) to absorb moisture and absorb the heat released is equal to 10.57 per molecule and kcal become kaenklan (nuclei), a substance that has a sensitivity to moisture absorbent surface (Surface active material) high. Make the growth of fine particles in the cloud becomes a large water droplets. (Ii) ammonia, Chennai concentrate (Ammoniumnitrate; NH4NO3) to absorb moisture and absorb the heat released is equal to 6.30 per molecule and kcal become kaenklan the same as urea. In the case of air or vapor cloud conditions with rain falling as. We helped pull the heat out of the category by using the compounds absorb ability. (3) dry ice (Dry ice CO2 (s);), the grinding is a flake or a size not exceeding 1 cubic inch is a substance produced from carbon dioxide. Through the processes under high pressure, until the ice cube. When in normal pressure to absorb heat into the sublimation. 11.The condition of solid carbon dioxide (CO2), temperature below freezing to-78° c. Make steam conditions emerging in the air condenses and becomes ice-flake.
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