What is the difference between temperature and heat? 2. What is a thermometer and what are its working principles? 3. Metal lids on glass jars can often be loosened by running hot water over them. Why does that work? Problems: 1. In an alcohol-in-glass thermometer‚ the alcohol column has length 11.82 cm at 0.0°C and length 21.85 cm at 100.0°C. What is the temperature if the column has length (a) 18.70 cm‚ and (b) 14.60 cm? 2. Show that if the temperature on the Celsius scale changes by ΔTC
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project was to build a Independent audible thermometer‚ which can speak the body temperature of a person. Our original goal was to build both software and hardware setup of the audible thermometer. We have already finished the software setup and we are currently working on the hardware‚ which we couldn’t complete because the budget was pretty heavy for us. So‚ we’ve built a setup which can speak a person’s body temperature using the sensor and a computer. TABLE OF CONTENTS CHAPTER 1
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i.e. limiting access to resources by other organisms‚ acting as a food source for predators and a consumer of prey. But with time I mean evolution each will be detached. Temperature is the hotness and coldness of a given period of time. The temperature of a place can influence the habitat in both good and bad ways. Temperature also plays a big row in everyday life. For example‚ if the weather is good (no snow) it gives opportunity for more livestock to grow‚ and more carbon-diode to plants and also
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had reflective silver on the inside of them. This may have been the reason for why the results turned out how they did. The black can decreased temperature quickly‚ it is expected that the black colour on the outside would have absorbed the heat that made it through the silver can and radiated it into the mediums around it. The white can decreased temperature the same amount as the black can. This may have been because there was no light so the can may have absorbed the heat and not reflected it as
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Fill in the blanks : (a) The hotness of an object is determined by its temperature. (b) Temperature of boiling water cannot be measured by a clinical thermometer. (c) Temperature is measured in degree Celsius. (d) No medium is required for transfer of heat by the process of Radiation. (e) A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by theprocess of conduction. (f ) Clothes of dark colours absorb heat better than clothes of light colours. Match the following
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n-dodecane‚ isopropanol and water before and/or after calcination at different temperatures (300–600 °C). DTA-TG‚ XRD‚ TEM and BET analyses were performed to characterize the produced powders. Characterization results revealed that the materials were not crystallized‚ even the temperature reached up to 600 °C. The crystallization of (Th1ÀxCex)Oy began at about 600 °C. The crystal growth took place between the temperatures 600 °C and 1200 °C. The powders have a range average crystallite sizes from
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of the equator (Singh et al..‚ 2010). The Antarctic is an example of an extreme environment. An extreme environment is a habitat that most life-forms find intolerable‚ or even‚ sometimes‚ lethal (Rampelotto‚ 2013). It is the Antarctic’s average temperature of minus 60 degrees Fahrenheit‚ average ice depth of 6‚500 feet and the fact that the region contains around seven million cubic miles of ice that allows the Antarctic to be classified as an extreme environment (Mulvaney‚ 1997). As it is an extreme
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Heat of Solution for Sodium hydroxide (NaOH) 3.2 grams NaOH Result: Temperature of DI water = ____22.8 °C Temperature after addition of NaOH = ______31.8 °C Part 2: Chemical Change- Reaction between acid and base Result: Temperature of HCl = ___21.4 °C Temperature after addition of pellets of NaOH = ____26.4 °C Part 3: Chemical Change- Reaction between stomach acid and antacid Result: Temperature of HCl = __23.3 °C Temperature after addition of Tums = __18.5 °C Questions and Conclusions: This
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steps. 100 mL of chilled water‚ which is 10-15 ºC colder than the room temperature‚ was prepared and was poured into the empty can. An apparatus was installed with a stand and a holder. The can was placed hanging on the stand by a glass rod (the rod went through the hole of can’s handle (?) and was placed above the holder). The candle was installed right below (about 2cm below) the can. The room temperature and the water temperature were measured to the nearest 0.1 ºC and was recorded. Light the candle
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energy between regions of matter due to a temperature gradient. Heat spontaneously flows from a region of higher temperature to a region of lower temperature‚ and reduces temperature differences over time‚ approaching thermal equilibrium. Prepared by: Ms. Ana Antoniette C. Illahi 2 (Heat Current in Conduction) • • • • • • • • H - Heat Current dQ – Quantity of Heat dt – Time dQ/dt – the rate of heat flows A – Cross sectional area (TH - TC) – Temperature difference L – Length k – constant (thermal
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