Name: Chelsea Smith States of Matter Lab Procedure: Go to: HYPERLINK "http://phet.colorado.edu/en/simulation/states-of-matter" http://phet.colorado.edu/en/simulation/states-of-matter and click on Run Now States of Matter Review: Kinetic energy (KE) is the energy of motion. Potential energy (PE) is the energy of position. What property of a substance corresponds to the average KE of its particles? Temperature What property of a substance corresponds to the average PE of its particles
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Temperature Rising Global Warming is the increase in the average temperature of the Earth’s near-surface air‚ landmasses‚ and oceans its projected prolongation. Many believe that the Earth is currently facing warming in the ozone layer brought on by the rising levels of trapped gases known as the greenhouse effect resulting especially from pollution. Global warming is‚ in Laymen’s terms‚ altering the balance in energy of the earth (Reid 27). “The topic of climatic change has been in question
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MOTOR TEMPERATURE RATINGS A frequently misunderstood subject related to electric motors is insulation class and temperature ratings. This paper tries to describe‚ in basic terms‚ the temperature relationships that are meaningful in standard AC induction motors. Some of the same information can be applied to DC motors but DC motors are more specialized and some of the ratings are slightly different. Perhaps the best way to start is to define the commonly used terms. MOTOR SURFACE TEMPERATURES
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together. Liquids have atoms that are spread out a little more. Gases are really spread out and the atoms and molecules are full of energy. They are bouncing around constantly. Gases can fill a container of any size or shape. It doesn’t even matter how big the container is. The molecules still spread out to fill the whole space equally. That is one of their physical characteristics. Think about a balloon. No matter what shape you make the balloon‚ it will be evenly filled with the gas molecules. The
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Introduction. The following is an experiment into temperature change in an exothermic reaction taking place between Sodium hydroxide (NaOH) and Hydrochloric acid (HCl) and also how the concentration of the acid will vary these results. The characteristics of the reaction feature a neutralisation‚ an energy change (shown as a temperature change) that is usually exothermic (gives out heat). The reaction of neutralisation is exothermic because of the bonds being broken and made in the reaction. When
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AUTOMATIC TEMPERATURE CONTROLLED FAN H ere is a circuit through which the speed of a fan can be linearly controlled automatically‚ depending on the room temperature. The circuit is highly efficient as it uses thyristors for power control. Alternatively‚ the same circuit can be used for automatic temperature controlled AC power control. In this circuit‚ the temperature sensor used is an NTC thermistor‚ i.e. one having a negative temperature coefficient. The value of thermistor resistance at
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Plants in Temperature An Investigatory Project Presented To the High School Department of the New Jerusalem School In Partial Fulfilment of the Requirements in
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effect of low temperatures Nicole MORE‚ Roy M. DANIEL* and Helen H. PETACH on enzyme activity Thermophile Research Unit‚ University of Waikato‚ Private Bag 3105‚ Hamilton 2001‚ New Zealand The stability of two enzymes from extreme thermophiles (glutamate dehydrogenase from Thermococcales strain ANI and f‚- enzymes‚ glucosidase from Caldocellum saccharolyticum expressed in Escherichia coli) has been exploited to allow measurement of activity over a 175 °C temperature range‚ from +
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in living cells. In addition to making life possible‚ many enzymes have numerous applications that affect our daily lives in other ways such as food processing‚ clinical diagnoses‚ sewage treatment‚ and the textile industry. In this activity you will investigate how a particular factor influences the action of an enzyme. Conditions: Students are NOT required to design an experiment. Experimental design has been provided for you to use instead. You are however required to submit a Risk Assessment
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Lab Report The effect of temperature on the reaction between Catalase and H2O2 Sarah AlShemesi In this experiment we’ll be exploring the effects of temperature on the reaction between Catalase and H2O2.We’ll be using five different temperatures to test this. The five different temperatures will be 10‚ 30‚ 50‚ 70 and 90 oC. We will use the liver as a source of Catalase. A 1 gram piece of liver will be inserted into a test tube with 2 cm3 of water‚ then 2 cm3 of H2O2 will be added. The Catalase
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