G e o g r a p h y Chapter 9: * 70% of the freshwater goes to the agricultural sector * If lakes dried up, temperature would rise * Lack of rainfall and increased evaporation can lead to drought * Dry soil, dry air, and high winds can cause wildfires * 9 of 10 wildfires are caused by humans, lightning is the largest natural cause Chapter 10: * 70% of the earth is covered in water * Water flows in rivers, it picks up small amounts of mineral salts from the rocks
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Imagine this: it is a very hot day in July, you are watching T.V, your movements are as if you were a robot. Your fingers of your right hand are looking for a channel that gets your attention, and you found it. You have a comfortable posture in the couch, the windows open and fresh air coming through it. The T.V continues with the program until is commercial time. The commercial starts normal, then it shows a cool drink and suddenly you are thirsty. You get up and head to the refrigerator, you open
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Separation techniques Chromatography Chromatography is a separation technique used to separate the different components in a liquid mixture. It was introduced by a Russian Scientist Michael Tswett. Chromatography involves the sample being dissolved in a particular solvent called mobile phase. The mobile phase may be a gas or liquid. The mobile phase is then passed through another phase called stationary phase. The stationary phase may be a solid packed in a glass plate or a piece of chromatography
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“special protective sugar that forms a gel-like medium that suspends and perseveres the organelles and membranes that make up the animal’s cells.” (Bradford) To simplify, trehalose wraps around the remaining water molecules in the body, to prevent evaporation in a sporadic temperature increase, and further preserve the Tardigrade. Some theorize this technique of survival was only acquired by some Tardigrades. But due to their unbelievably small size, the sugar may also just be undetectable. Tardigrades
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3. INTRODUCTION Organic compounds are isolated either from natural sources or from reactions mixtures. These compounds are seldom pure and are usually contaminated with small amounts of other similar compounds, which are found to exist together or formed during the reaction. In order to characterize them, it is important to purify them. 4. PROCESSES FOR PURIFICATION 1. Crystallization 2. Sublimation 3. Distillation 4. Chromatography 5. Differential Extraction 6. Qualitative Analysis 5. 1. CRYSTALLIZATION
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The refrigerant that is typically used in an absorption chiller is distilled water and the absorbent is lithium bromide. These two fluids, the refrigerant An introduction to the absorption refrigeration cycle Absorption cycle versus vapour-compression cycle There are two fundamental differences between the absorption refrigeration cycle and the vapour-compression refrigeration cycle with which we are more familiar. The first difference is that the compressor is replaced by an absorber,
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WATER DROPLETS= Water droplets in cloud are tiny, to light to fall, 1000’s must collide to form a heavy enough drop to fall DRIZZLE= Fine water droplets, 0.040-0.5mm Diameter RAIN= Consists of falling water droplets, 0.5-5mm Diameter, larger drops, break into pieces as they fall through the air FREEZING RAIN=When raindrops are close to freezing, strike a cold object near ground, the drops freeze instantly SNOW= Water vapor crystalizes on tiny particles of dust/smoke, forms when air/water
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APPLYING THE DRYING CURVE TO YOUR DRYING PROCESS Darren A. Traub A Mass Drying Rate / Temperature s I explained in my coluct increases from the feed temperaAs the drying process proceeds umn last month, the initure (most commonly ambient temperthrough to the falling rate period, the tial and constant drying atures) to approximately the wet bulb moisture content progressively rates may affect the temperature during the constant rate reduces and the rate of moisfalling rate
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Introduction Distillation is a procedure that has been used for many centuries as a separation technique to isolate liquids with different boiling points and vapor pressure. The idea of distillation generally involves the conversion of a solvent into a vapor then back to a solvent based on vapor pressure. The liquid with the lowest boiling point and highest vapor pressure would be collected first (Weldegirma,2017). There are various distillation methods, however the two methods utilize in this experiment
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Distillation and Gas Chromatography Goal: The goal of today’s experiment is to collect three different fractions for each distillation by separating two different volatile solutions. Once the fractions are collected, we will record the boiling point range and perform a gas chromatography an original mixture along with the three different fractions that were collected. Significance: This lab is very important if someone needs to separate two different volatile solutions. They can do the simple
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