Evaporation and Transpiration Evaporation and transpiration (evapotranspiration) are components of hydrologic cycle‚ which at principle‚ can be calculated from meteorological observations such as temperature‚ humidity‚ radiation‚ wind speed‚ etc. The process‚ however‚ is quite complex and a substantial literature has been produced on it. In this chapter our focus is mainly on the concept and simple estimations of evaporation and transpiration. Mechanism of evaporation from water surfaces Here
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you’re left with the residue which is the other component. In India‚ citizens would often boil saltwater to obtain salt. The problem with evaporation is that you can only get one component from the substance and it’s usually the one with the higher boiling point. Do not confuse
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Silver Iodide By: Paul Gilmore III Table of Contents I. Introduction II. Properties III. Cloud Seeding IV. Photography V. Toxicity VI. Conclusion VII. Works Cited Paul Gilmore III 15 April 2013 Ms. Placke 4th Period I. Introduction Silver Iodide is an inorganic compound represented by the formula AgI that is used in cloud seeding‚ photography‚ and can also be used as an antiseptic. These are the three main ways the compound
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Brittany Gecik Dr. Sowa Experimental Foods Lab February 13‚ 2013 Crystallization‚ Sugar‚ and Fudge Lab Report Introduction: Controlled crystal formation is important to acquire a certain texture in crystalline candy. Crystalline candies are smooth‚ creamy‚ and easily chewed with a definite structure of small crystals that resemble tiny snowflakes. Examples of crystalline candies are fondant‚ fudge‚ and penuche. When a concentration of sugar is higher than 121 degrees Celsius‚ it is
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used during the experiment are as follows; * Marcet boiler * Bunsen burner * Gauge pressure * Thermocouple * A mercury-in-glass thermometer * A stop watch PROCEDURES * I heated the boiler with both taps open. When boiling started‚ I closed the side tap. * I allowed the steam to escape from the top tap for one minute I closed the top tap. * I heated the boiler with all taps close and took readings of temperature for the selected pressure as it boils. * I
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critical point‚ the saturated liquid and saturated vapor state are identical. 5. At supercritical pressures‚ the substance is simply termed fluid rather than liquid or vapor. 6. If the initial pressure at –200C is 0.260 kPa‚ heat transfer results in increase of temperature to –100C. Ice passes directly from the solid phase to vapor phase. 7. At the triple point (0.6113 kPa) and a temperature of –200C‚ let heat transfer increase the temperature until it reaches 0.010C. At this point‚ further
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Optimal Growth Conditions and Generation Time for E. coli Introduction The goals of these exercises were to determine the optimal growing condition and the generation time of E. coli. Materials and Methods Please refer to the lab manual for a complete list of materials. To determine the optimal growth condition for E. coli‚ we had to test the environmental factors that could affect the growth. We tested the relative growth of E. coli in the presence and in the absence of oxygen. The results
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of solvent. · Paragraph 2: What could you improve on? (Do you think if someone repeated your lab they would get identical results? Why not? What are some steps you could take to improve the reliability and repeatability of your results?) Point: Although most variables were controlled for‚ the repeatability of this lab could be improved by including the following steps. Make sure the lab is quiet and distraction free at all times. This is important to the experiment because when a scientist
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Effect of Temperature on Solubility of a Salt Ahmed Mohammed 17-nov-2013 Abstract In this experiment‚ you will study the effect of changing temperature on the amount of solutet will dissolve in a given amount of water. In this experiment‚ you will completely dissolve different quantities of potassium nitrate‚ KNO3‚ in the same volume of water at a high temperature. As each solution cools‚ you will monitor temperature using a computer-interfaced Temperature Probe and observe
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Internal Assesment - Task 2C In this experiment I am investigating the relationship between surface area and the volume of a model cactus and to determine whether this relationship affects the loss of water. We used oasis blocks‚ an absorbant material used by florists as a substitute for a cactus‚ that would soak up the water‚ and thus ideally show the percentage water loss by weighing the before and after evaporation weights. Independent Variable The independent variable is the total surface
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