is mostly nitrogen | Air availability in water is high and depends on the temperature. Diffusion is slower. More gases can be dissolved at lower temperatures. Oxygen Concentration also decreases with depth. | Nutrients | | | Temperature variation | Surface temperatures on land vary far more than in water. The highest recorded is 60°C‚ and the lowest is less than –80°C. | Water heats up more slowly than air. Temperatures in the surface ocean layers vary from 30°C at the equator to freezing point
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An intensive property is a physical quantity whose value does not depend on the amount of the substance for which it is measured. For example‚ the temperature of a system in thermal equilibrium is the same as the temperature of any part of it. If the system is divided the temperature of each subsystem is identical. The same applies to the density of a homogeneous system: if the system is divided in half‚ the mass and the volume change in the identical ratio and the density remains unchanged. According
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1. Diameter of the test tube. 1cm 2. Length of test tube. 11.5cm 3. Volume of the test tube. 9.032 4. Mass of the empty test tube. 10.35g 5. Mass of the filled test tube. 29.89g 6. Mass of liquid in test tube. 19.54 7. Temperature of the water. 22ºc Part B Aluminum Sinker 1. Mass of object. 6.87g 49.44g 2. Volume of the water in the graduated Cylinder after the addition of the object. 17.5mL 19mL 3. Volume of the object due to displacement
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the greenhouse effect. The greenhouse effect is the absorption of energy radiated from the Earth ’s surface by carbon dioxide and other gases in the atmosphere‚ causing the atmosphere to become warmer. The greenhouse effect is what is causing the temperature on the Earth to rise‚ and creating many problems that will begin to occur in the coming decades. For the last 10‚000 years‚ the Earth ’s climate has been extraordinarily beneficial to mankind. "Humans have prospered tremendously well under a benign
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actually made up of lots of tiny particles. These tiny particles move around in water when it is in its liquid form‚ but as the temperature gets lower these particles slow down and hardly move. When it gets cold enough they stick together and then what was once a liquid has now became a solid we all know as ice. Ice turns into water‚ back to a liquid‚ when the temperature of the ice cube is rising which cause the particles in the ice to move faster and is the converted into water. There are
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through and temperatures do not get very cold. The coldest temperature Maricopa had reached was 26 degrees in December. Unlike most other places‚ in Maricopa‚ rain is rare‚ and snow is unheard of. During the summer that population dwindles back to its normal numbers. Snowbirds leave back to their home states to get out of the heat. Summer temperatures can reach up to 122 degrees! A vacation to Arizona during the Summer must be carefully planned if you are not used to these high temperatures. Summer is
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elemental analysis makes an experiment more efficient in determination of unknown compound. The color‚ odor‚ melting point and boiling point determines the physical state and properties of a compound. It also determines its volatility in respect to temperature. The functional group of a compound can be determined on a basis of a spectra formed by a NICOLET iS5 FT infrared spectrometer. The IR sample of a liquid is obtained on a pure liquid called a neat sample whereas solid sample was obtained with
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AC 0 0-6A • • .•. • • • • • • • • • • • • • • • • •• •• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •• • •• •• • ••• • • • • • • • • • • • • • • • • • • • • •• •• •• ••
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Continuous stirred tank reactor models Dr. M.J. Willis Dept. of Chemical and Process Engineering‚ University of Newcastle. e-mail: Tel. Written: Updated: mark.willis@ncl.ac.uk 0191 222 7242 November‚ 1998 April‚ 1999; March‚ 2000 Aims and objectives Chemical reactors are the most influential and therefore important units that a chemical engineer will encounter. To ensure the successful operation of a continuous stirred tank reactor (CSTR) it is necessary to understand their dynamic characteristics
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Here are a couple examples: |Introduction | |This report discusses an experiment to study the relationship of temperature and pressure of an ideal gas (air) that was heated in a closed | |container. Because the ideal gas was in a closed container‚ its volume remained constant. The objective of the experiment is to test whether the | |ideal equation of state
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