of the metal was determined by the heat energy calculations. The heat capacity that was found matched closely to that of the lead. There were several possible sources of error that could be found throughout the lab. Some of the main errors as seen in question 7 that could have affected the results of the lab were the amount of water transferred with the hot metal‚ the metal cooling off as it was transferred from the calorimeter‚ the calorimeter lost heat to the surroundings as it was stirred
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(MEC 2700) LABORATORY MANUAL JULY 2007 Table of Contents Experiment 1: Heat Capacity of Gases Experiment 2: Thermal and Electrical Conductivity of Metals Experiment 3: Heat Pump Experiment 4: Heat Conduction Experiment 5: Free and Forced Convection Experiment 6: Thermal Radiation Experiment 1: Heat Capacity of Gases 1. BACKGROUND The first law of thermodynamics can be illustrated
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supported the hypothesis. There was a significant disparity between the peanut food source and the sunflower seed food source. The ANOVA test was able to provide a p-value very close to 0 which means it’s statically significant. On top of that visually the average amount of the food source left was visually different when comparing 62.8 peanut grams left compared to 99 sunflower seed grams left. This clearly shows that peanuts are the more desirable food source for squirrels in the area we tested
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Measuring the energy content of a “Dorito” and Popcorn. Using the method as described on page 46 of the textbook‚ measure the energy content of a Dorito and a “Popped” corn kernel. Aim: 1. Compare your results of each food and determine which will give the greatest energy per gram. 2. How much of each food would you need to boil 250mL of water? Hypothesis: (Before you begin‚ what do you think will be the conclusion.) As the Dorito is heated‚ it will release much more heat than the popcorn
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mouths of many Americans. The famed Peanut Butter and Jelly sandwich‚ or PB&J‚ has the ability to put a smile on a toothless face‚ it is a universal food. This simple but delicious sandwich can be done in seconds all you need is hunger and some household ingredients to get started. Learn and Join the thousands of americans who eat and enjoy Peanut Butter and Jelly everyday. To begin you will need to grab all the needed ingredients. Creating the perfect peanut butter and jelly sandwich might be simple
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In this lab‚ we will measure the heat of combustion‚ or calorimetry‚ of a candle and compare the found quantity with known values for other hydrocarbons. The calorific value is the total thermal energy released when a substance goes through complete combustion with oxygen. In order to achieve the purpose of this lab‚ we must first determine the mass of the tea candle. Then‚ we will determine our room temperature‚ measure about 100 mL of chilled water‚ and then pour the water into the given empty
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Title: Specific Heat Capacities of Metals Experiment Date: 3/28/2012 Report Date: 4/4/2012 Purpose: The purpose of the lab is to measure the specific heat capacities of aluminum‚ steel and brass. Theory: The amount of heat (ΔQ) required to change the temperature of an object is proportional to the mass (m) of the object and the temperature change (ΔT) of the object. ΔQ= cmΔT where c is called as the specific heat capacity of the material. In the calorie units system the unit of quantity
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MECHANICAL ENGINEERING 449 SENIOR LAB Test of a Heat Pump Submitted Submitted by: Submitted to: Executive Summary: The purpose of this experiment was to determine the performance values of a Hylton Air and Water Heat Pump System. The system uses refrigerant 134a and water as the working fluids. The power input of the system was measured. The rate of heat output and the coefficient of performance are to be determined
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The hypothesis about heat death of the universe Our knowledge of the universe is still negligible‚ and we can not confidently assert that the universe is not under the influence of external forces‚ or may be considered as a thermodynamic system. However‚ it is the concept of heat death was the first step to realize the possible finiteness of the Universe‚ although we do not know when and on what scenario will happen of its destruction. At the present stage of existence (13.72 billion years)‚
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The conventional method was conducted by placing 2.0641 grams of salicylic acid in a dry 125 mL Erlenmeyer flask. In a fume hood‚ 4 mL of acetic anhydride and 5 drops of concentrated sulfuric acid were added to the flask. The contents were swirled in the flask and then heated for 20 minutes in a hot water bath. After the 20 minutes were up‚ 10 mL of cold water were added in 1 mL increments. The flask was cooled for 10 minutes and occasionally stirred. The crystals that formed were collected via filtration
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