BOILING AND CONDENSATION BOILING • Phase change phenomenon where in transformation of liquid to vapour occurs at the saturation temperature of the fluid. It occurs at a solid/liquid interface due to convection heat transfer from the solid and usually occurs at surface temperatures higher than the saturation temperature of the fluid Agitation of fluid by vapor bubbles provides large convection coefficients Modified Newton’s law of cooling qs’’ h Ts Tsat Te • • • BOILING – CLASSIFICATON
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perform a first hand investigation to demonstrate the effect of dissolved carbon dioxide on the pH of water. DUE DATE: 21/11/07 CONDUCTOR: Wissam Bardouh EFFECT OF DISSOLVED CARBON DIOXIDE (CO2) ON PH OF WATER Introduction: ((Carbon Dioxide is a greenhouse gas. It is everywhere ranging from our bodies to the atmosphere. Carbon dioxide is produced in living organisms as a result of cellular respiration (glucose + oxygen -->carbon dioxide + water + energy). It occurs in high concentrations in the
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Fresh water always freezes at 0℃‚ but that is not always so for water with salt inside. The higher amount of salt there is in the water‚ the more the freezing point decreases. So‚ salt water freezes later than freshwater. The exact measurement of how they impact each other is this: every 5 psu increase‚ the freezing point decreases by 28%.. In an ocean‚ there is frazil and brine. Frazil are ice crystals suspended in water‚ and they are made of nearly pure freshwater. Frazil is the first stages of
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Sometimes you will have a high level of salt or not enough chlorine. In order to maintain a safe swimming pool you need to be sure that everything is working as it should be. If you find that you are frequently running into problems one easy solution could be to monitor it more closely. If you
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What Amount of Water Grows the Plant the Longest? Daniel Rivera Alfonso Pineda Mrs. Fraijo AP Biology 10 June 2012 Abstract: In this experiment‚ 8 plants will be tested. Each except one plant (which will be the control group) will receive a certain amount of water starting at 0 teaspoons of water. Each plant will receive 1 more teaspoon than the previous cup‚ so it would be increasing. For example‚ cup 4 will have 4 teaspoons of water and cup 3 would have 3. The data recorded will be
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purpose of this experiment was to discover if using sugar and tonic water with water would increase the growth rate of barley. In this experiment‚ we changed two variables‚ the independent variables sugar and tonic water. We added one tablespoon of each substance to four ounces of water which will be used to nourish the plant. We tested these experimental controls to determine if any of the substances would help accelerate the growth of the barley. If the sugar water or tonic water mixture successfully
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RUNNING HEAD: AQUARIUM DIFFERENCES 1 Freshwater vs. Saltwater Aquariums C. Kevin Barr ENG121 Andrea Bear August 28‚ 2012 AQUARIUM DIFFERENCES 2 Freshwater vs. Saltwater Comparison There are many differences when it comes to freshwater versus saltwater aquariums. We ’ll try and shed some light on some of the differences when it comes to tank types‚ aquarium
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In the beginning salt water and regular water got along. They all lived in the same ocean and each droplet would live in harmony. They shared the undersea environment with all the fish and sea plants. Some plants and animals needed salt water more than fresh water and some needed fresh water more than salt water. This is where the problem all started. The fresh water began to become jealous because the salt water was mocking the fresh water about them being the best type of water. It started out
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The effect of salt concentration on grass growth Abstract Our aim was to test the effect of different salinities on the growth of plants which what we did was measured different amounts of salt dissolved into 2 litres of water‚ watered the plant once with the salt water then for 9 days with pure ware. I found with my investigation that the less the salt‚ the more the growth of the plant. My aim was achieved by measuring the 5 fastest geminating (out of 20) and to measure the differences in growth
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Water Rockets Abstract Water rockets have been a source of entertainment and education for many years. They are usually made with an empty 2-litre PET bottle by adding water and pressurizing it with air for launching. Water rockets are used to help students understand the principle of aeronautics. Aim The aim was to design and perform an experiment to determine the volume of water to use in order to obtain maximum height for the bottle rocket. Introduction Bottle rockets are often used in
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