"Molar heat of combustion experiment" Essays and Research Papers

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    Aim: Perform an experiment to determine the latent heat of fusion for milk. Materials: Calorimeter Celsius Thermometer Platform balance Kettle Milk ice cubes Stopwatch Hot Water Procedure: The copper cup was weighed and its mass was then recorded. The kettle was then used to boil water and this water was poured into the copper cup. The mass of the cup plus the hot water was calculated and recorded. The copper cup was then placed in the insulated container. The water’s temperature was

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    Combustion of Alcohols

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    PROBLEM Investigate the heat energy in a range of alcohol’s used as fuels. HYPOTHESIS I predict that octanol will release the most heat energy. This is because there is more bond energy in that molecule than the other alcohols. Within a molecule there are bond energies that are holding the atoms together. When the fuel combusts a chemical reaction takes place‚ this breaks the bonds‚ this requires energy‚ and makes new bonds this gives out energy. The energy differences between the two tell us

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    COMBUSTION AND FLAME

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    DELHI PUBLIC SCHOOL‚RANIPUR‚HARIDWAR LESSON 6:COMBUSTION AND FLAME DATED:24.07.14 1 COMBUSTION: When a substance combines readily with oxygen to give heat and (light) it is called combustion. 2 COMBUSTILE SUBSTANCE: A substance which burns easily to give heat it is said to be combustible. For ex. Wood ‚paper 3 FUEL: A substance that is burnt for obtaining heat and light is called a fuel. Carbon based fuel: wood ‚coal‚wax ‚petrol etc. Non carbon based fuel: hydrogen 4 CHARACTERISTICS OF AN

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    Micro combustion

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    energy like fuel cells. But combustion is the most important one to obtain thermal energy from various fuels including hydrogen‚ natural gas‚ fuel oils because of its more energy output. Microcombustion is a potential energy source for small devices like unmanned vehicles and micro satellites .It is to be carried out in a miniature device called Microcombustor which is typical of 1mm diameter. Flame extinction is the biggest disadvantage of Microcombustion as heat losses become more important

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    Pentane Combustion Lab

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    Aim: The aim of this experiment is to determine which fuel‚ out of Pentane‚ Propane-1-ol and Propane-2-ol would be the most appropriate to take on a camping trip to a national park where wood cannot be used to burn. Factors that need to be considered are: • Heat of combustion (flash point) • Heat of vaporisation (boiling point) • How long the fuel will last • Does the fuel heat up the water relatively quickly • Does the fuel combust completely Hypothesis: If the tests are all successful‚ Pentane

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    What Is Combustion?

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    Addition of carbon Combustion is the rapid burning of fossil fuels. Stored carbon in coal‚ oil and natural gas returns to the atmosphere when these fossil fuels are burnt and during natural combustion occurrences such as volcanic eruptions. Fossil Fuels such as coal are constructed when a living organism dies and decomposers‚ ie Fungi and microbes are unable to decompose it. After the organic material is untouched for millions of years‚ it eventually turns into fossil fuels. Petroleum‚ coal and

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    Third Molars

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    What is Third Molar or Wisdom Tooth Third molars or wisdom teeth‚ as they are more commonly known‚ are the teeth which are most often missing‚ impacted and with altered morphology. Advances in dental anthropology states that there is a reduction in the number of teeth and size of jaws on evolutionary basis for the past 100000 years. Third incisors‚ third premolars and fourth molars have disappeared already. At present human third molars or wisdom teeth or wisdom teeth often fail to develop‚ which

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    Combustion of Fuels

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    used and extracted‚ we could run out of oil in 50 years. We need to conserve what fuels we have left and stop using them in our cars. Another big problem with burning fossil fuels‚ especially gasoline‚ is the damage it causes to the environment. Combustion of fuels in cars has been identified as the largest contributor to air pollution in the world.

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    Molar Mass Lab

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    Molar Mass of a Volatile Liquid There are several ways to find the molar mass of a substance. One way‚ if the substance is a gas‚ is to use the Ideal Gas Equation to find molar mass. The standard equation reads PV=nRT where “n” is the number of moles present‚ “P” is the pressure (which is obtained by reading the barometric pressure of the room with the class barometer)‚ “V” is the volume of the gas‚ “R” is the universal constant‚ and “T” is the temperature of the gas. The experiment’s objective

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    Molar Mass

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    What is molar mass?Molar mass is the weight of one mole (or 6.02 x 1023 molecules) of any chemical compounds. Molar masses of common chemical compounds that you might find in the chemistry laboratory can range between 18 grams/mole for compounds like water to hundreds of grams per mole for more complex chemical compounds.The lightest possible chemical that one can have under normal conditions is hydrogen gas‚ or H2. There is no limit to how heavy a chemical compound can be - it is not uncommon for macromolecules (large

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