Heat of Mixing: Ethanol and Water Abstract The temperature change when known amounts of water and ethanol were mixed was determined to see the enthalpy change in an isothermal and isobaric environment. Agreeable data was found compared to similar experiments. As the mole fraction increased of the solution so did the enthalpy until a certain limit of about 0.32. Since water’s structure and unique properties affect many aspects of a solution‚ the solutions enthalpy’s decreased at a certain time
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OBJECTIVE The main purpose of this experiment is:- i. To demonstrate the working principles of industrial heat exchangers ii. To investigate the efficiency of the heat exchanger in parallel and counter flow arrangements 1.0 INTRODUCTION A heat exchanger is equipment in which heat exchange takes place between 2 fluids that enter and exit at different temperatures. The main function of heat exchanger is to either remove heat from a hot fluid or to add heat to the cold fluid. The direction
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PRODUCTS OF COMBUSTION OF GASEOUS FUELS AND CALCULATED FLAME TEMPERATURE Gheorghe CAUNEI FLORESCU1‚ Lt. Eng. Constantin NISTOR‚ PhD. Student2‚ Associate Professor Amado George STEFAN2 1 GENERAL DIRECTORATE NATIONAL SYSTEM HAIL - MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT‚ 2 MILITARY TECHNICAL ACADEMY Abstract. The work contains elements of combustion stoichiometry. It defines the ratio of the mass of the fuel mc and air mass ma‚ called fuel-air dose‚ d. Commercial liquid fuels for
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1 (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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The Latent Heat of Vaporization of Water The Latent Heat of Vaporization of Water Aim: The aim is to determine the latent heat of vaporization of water by doing an experiment of boiling water. Theory: The latent heat of vaporization is the amount of energy that is required to transfer a kg of liquid from the liquid state to the gaseous state. This transformation appears‚ when water is heated. The temperature of the water keeps increasing‚ until it
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” Therefore‚ if there are a lot of energy transfers‚ this means that the lab is not efficient. For example‚ on the balloon’s motion‚ there are points where energy is lost. When the balloon is moving‚ the friction between the string and straw causes heat‚ and thermal energy. Another example is the sound energy created during the movement of the balloon‚ the energy has been lost. In order to improve this and make it more efficient‚ perhaps we could use a string that created less friction and then would
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Conclusions The purpose of this experiment was to find the relationship between a substance’s specific heat and its atomic weight. In the lab‚ the substances with the higher atomic weights had less specific heat. From this‚ we can conclude that specific heat and atomic weight have an inverse relationship‚ meaning as one decreases the other increases. The reason for this is because if atoms are small‚ or light‚ they have the ability to pack tightly together‚ leaving almost no space between them
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aside - Observe and record the colour of solution in the Visking tube and in the beaker. - Test both solutions for the presence of glucose using Benedict’s solution. Pour 2ml of each solution into separate test tube and add 1ml of Benedict’s solution. Heat the mixture in the water bath for 5 minutes and record the colour change. Result : |Solution in |Contents |Iodine |test |Benedict’s test | | | |Initial
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pleasant‚ fruit-like odors and are the chemicals responsible for the odors and flavors of many fruits (oranges‚ bananas‚ pineapples) and flowers. In most cases‚ such natural products get their properties from a mixture of organic compounds. In this experiment you will prepare two esters of o-hydroxybenzoic acid‚ more commonly known as salicylic acid. One of the esters‚ acetylsalicylic acid‚ is aspirin‚ the common analgesic. We will synthesize aspirin by mixing salicylic acid with acetic anhydride. The
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UTAR FHSC1134 Inorganic Chemistry Trimester 3 Experiment 1 ________________________________________________________________________ Title: Investigating the Properties of Period 3 Oxides Aim: To examine the oxides of Period 3 elements and describe their structure and bonding. Introduction: Generally‚ there are oxides of metals and non-metals. Metals burn in oxygen to form basic oxides while non-metals form acidic oxides. Structurally‚ they are covalent or ionic compounds. You are to
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