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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I did not understand how to explain why temperature does not change during a phase change and am not entirely sure if I have accurately or thoroughly described 3.2.3 and 3.2.4. This is also the case for 3.2.12 Thermal Physics Thermal Concepts: Temperature (T) is a measure of how hot or cold an object is‚ and it is the temperature that determines the determines the direction of thermal energy transfer between two objects. It is a scalar quantity and is measure in degrees celcius (°C
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Heat: The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius. The relationship between heat and temperature change is usually expressed in the form shown below where c is the specific heat. The relationship does not apply if a phase change is encountered‚ because the heat added or removed during a phase change does not change the temperature. Q=mcTDelta Abstract: In this experiment we are trying to determine the specific
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respiration would increase as the temperature would increase. I also predicted that there would be an upper temperature limit. The experiment proved part of my hypothesis correct and part of it incorrect. I was correct in predicting that the rate would increase as the temperature increase‚ but I was incorrect in hypothesizing that there would be an upper limit. My hypothesis for the larvae experiment was that the level of aerobic respiration would increase as the temperature increased and there would be
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THE EFFECTS OF COLD ON BLOOD PRESSURE AND PULSE Abstract The ability known as thermoregulation is a feature of an organism that help to keep the body temperature within certain thresholds‚ thus independently from external conditions. A dynamic state of thermal balance of human body between its internal environment and the territory is a model example of precise control of organism heat. In the case where such stability would be disturbed the immediate response would appear as well. In accordance
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slow moving truck and fast moving sports’ car 2 2 SI unit of energy = from formula of energy = kg . m /s = joule (J) The joule (J) is a very a very small unit NonSI unit of heat energy : The calorie (cal) amount of energy required to raise the temperature of one gram of water by one degree Celsius 1 cal = 4.184 J 1 Chemistry 101 Chapter 6 POTENTIAL ENERGY (Ep) · Definition: the energy of an object has because of its position in a field of force is stored energy · Example:
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fusion is the change in enthalpy resulting from heating a given quantity of a substance to change its state from a solid to a liquid. The temperature at which this occurs is the melting point would probably be a great explanation on why ice cube in 0 degree centigrade is more effective in cooling a soft drink than the same mass of water with a same temperature. The liquid phase has a higher internal energy than the solid phase. This means energy must be supplied to a solid in order to melt it and
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September 19‚ 2012 Design Diagram Dissolved Oxygen: Title: The effect of the temperature of water on the concentration of dissolved oxygen Hypothesis: If the temperature of the water is increased‚ then the concentration of dissolved oxygen will decrease. |Independent Variable: Temperature of water (Cº) | |Temperatures
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a substance corresponds to the average KE of its particles? Temperature 4) What property of a substance corresponds to the average PE of its particles? Phase 5) List the three common states of matter in order of highest potential to lowest. Gas‚ liquid‚ solid e-Lab: 1) Open PhET simulation States of Matter. 2) The beginning of the lab starts with Neon in a solid state at 13 K. (Kelvin (K) is a unit of temperature like Celsius and Fahrenheit). You can heat or cool the substances
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