First Name‚ Last Name Date Period Heat Absorption Lab First Name‚ Last Name Date Period Heat Absorption Lab Heat Absorption Lab Problem: Does color affect heat absorption? Research: Some colors reflect light and heat energy. Other colors absorb light and heat energy. Hypothesis: If I place black‚ white‚ red‚ green‚ blue and yellow paper under a lamp‚ then __________ paper will absorb the most heat.
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Understand and observe the concept of Heat Transfer‚ by measuring the temperature distribution for steady state conduction of energy through a specific efficient unit. • Understand the Fourier Law of heat conduction and the usage of its equation in determining the rate of heat flow via solid materials. II. Theory : The Fourier Rate Equation: When a plane section of ∆x and a constant area A maintains a temperature difference ∆T‚ then the heat transfer rate per unit time by conduction
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Specific Heat Lab Report “Here are the facts we confront; No one is against conservation. No one is against alternative fuel sources.” – J. D. Hayworth Research Question: Does the number of hydrocarbons that a fuel is composed of affect how much it will ignite? If so‚ consider the following: What is the quantity and concentration of the combustion that is released and how can that be measured in other (more coherent) means? These are the fuels that were seasoned throughout the
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Saline Lab Purpose The purpose of this experiment is to find out the molarity of each solution while finding out how many grams of sodium chloride we have. Materials 1. Wire gauze 2. tongs 3. Burner 4. balance 5. Matches 6. hot hands 7. ring stand 8. ring clamp 9. graduated cylinder 10. evaporating dish Procedure Steps: 1. Mass the evaporating dish 2. Record how many mL of solution you add into the evaporating
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CHEMISTRY – THERMOCHEMISTRY INTRODUCTION WORKSHEET DEFINE THE FOLLOWING TERMS: BOILING BOILING POINT CALORIE (OR KILOCALORIE) CONDENSATION DEPOSITION ENDOTHERMIC REACTION ENTHALPY OF FUSION ENTHALPY OF VAPORIZATION EVAPORATION EXOTHERMIC REACTION FREEZING HEAT JOULE MELTING MELTING POINT SPECIFIC HEAT SUBLIMATION TEMPERATURE VAPOR VAPOR PRESSURE VAPORIZATION VOLATILE Name ________________________________________ Date ______________ Period _______ HONORS CHEMISTRY – THERMOCHEMISTRY INTRODUCTION
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TUTORIAL 9: THERMOCHEMISTRY 1. 2. 3. The following terms are often used in thermochemistry. Explain each one of them by giving an appropriate example: (a) Standard enthalpy change (b) Exothermic process (c) Endothermic process Define and write an example of thermochemical equation for each of the following terms: (a) Enthalpy of formation (b) Enthalpy of combustion (c) Enthalpy of atomisation (d) Enthalpy of neutralisation (e) Enthalpy of hydration (f) Enthalpy of solution (dissolution)
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Aim: i) To find the relationship between supplied energy and change in temperature of water. ii) To find the specific heat capacity (SHC) of water. Hypothesis: As time increases so does the temperature since the water is exposed to the heated wire for a longer period of time. Variables: The Dependent Variable is the temperature of the water‚ and since the Energy is calculated using temperature it is a dependent variable as well. The constant variables are the voltage and current. Theory:
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SCH4U Thermochemistry Test Review Try all the problems previously assigned‚ look at the problems in your textbook‚ and try these: 1. Be sure to understand the following vocabulary: Thermochemistry Thermochemical Equation System Surrounding Calorimetry calorimeter Heat temperature thermal energy chemical energy Open‚ closed‚ isolated/insulated systems enthalpy change Molar enthalpy Exothermic changes Endothermic changes Hess’s Law Heat capacity specific heat capacity combustion
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A safety audit for the gas-solid fluidization experiment was conducted. The following safety concerns were found when performing the audit: operating beyond the operating limits‚ spillage of the beads‚ risk of head injury from bending over to change the beads in the apparatus or from the low bar‚ and congestion of the workspace. One of the biggest safety concerns with this lab involved the small glass beads that acted as the solid in the experiment. If the gas flow rate goes below 50 standard cubic
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Lab 2 “Separation of a Mixture of Solids Lab Report Assistant (10 points) Data Table 1: Experimental Data Grams Percent of mixture Iron (Fe) fillings 0.9 g 20 % Sand 1.2 g 25 % Table salt 1.6 g 25 % Benzoic acid .8 g 16 % Total 4.5 g 86 & Questions A. How did your proposed Procedures or flow charts at the beginning of this experiment compare to the actual Procedures of this lab exercise? (2 points) I proposed a magnet would be the used to remove the iron from
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