Jet A1 by burning this fuel there are impact on the global warming the researcher investigate what is the problem with fossil fuel (Jet A1). As solve the fuel problem there are several alternatives have tested‚ that some of them are biofuel‚ Liquid Hydrogen‚ Fracking for Natural Gas and scher-Tropsch (F-T) fuels from fossil feedstocks. However to fund out the alternative fuel is sustainable .firstly defined term sustainability. There are numerous definitions for the word sustainable. White (2001‚
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electron in an atom is given by En =………….. a ) -4π2me4n2h2 b ) -2π2me2n2h2 c ) -2π2me4n2h2 d ) 2πme4n2h2 7. The value of Bohr radius for hydrogen atom is…………….. a ) 0.529×10-8 cm b ) 0.529×10-10 cm c ) 0.529×10-6 cm d ) 0.529×10-12 cm 8. The intramoleucklar hydrogen bonding is present
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Chemical Reaction: Cold Packs CHM110 Chemical Reaction: Cold Packs Introduction Chemical reactions happen every day in a variety of ways. We will explore the science behind cold packs and the chemical reactions that happen at the molecular level. Furthermore‚ we will examine and explain what chemical bonds are formed‚ broken‚ or both. The product is a simple construct of two bags: one containing water (solvent) and the other a chemical compound called ammonium nitrate (NH4NO3). In order to activate
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combinations of elements. While you probably know your body is mostly water‚ which is hydrogen and oxygen. Most of the human body is made up of water‚ H2O‚ with cells consisting of 65-90% water by weight. Therefore‚ it isn’t surprising that most of a human body’s mass is oxygen. Carbon‚ the basic unit for organic molecules‚ comes in second. 99% of the mass of the human body is made up of just six elements: oxygen‚ carbon‚ hydrogen‚ nitrogen‚ calcium‚ and phosphorus. Chemistry of Love The emotions that you
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Process and importance of fusion in stellar evolution. Huge clouds of hydrogen atoms and gravity cause the atoms to be attracted to each other creating them to slowly move towards the centre of mass.The atoms then continue condensing until something happens.All of the atoms are trying to get to the centre of mass. While this is happening the temperature becomes 10 million Kelvin and at that point there is enough temperature and enough pressure to overcome the coulomb forces‚ bringing the two protons
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we began naming acids and bases we must understand each term. A base is a compound that produces hydroxide ions when dissolved in water. An acid is a compound that produces hydrogen ions in solution is a hydrogen-ion donor‚ or electron –paired accepter. The name of the acid depends on the ion’s ending and the number of hydrogen atoms must be equal to the negative charge‚ and the name of a base depends on if it contains OH or hydroxide. The naming of an acid depends on the suffix of the cation or
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Metals and Non-metals Elements are divided mainly into two groups on the basis of physical and chemical properties – Metal and Non-metal. Metals: Part - I Physical Properties of Metals:- Hardness:- Most of the metals are hard‚ except alkali metals‚ such as sodium‚ potassium‚ lithium‚ etc. Sodium‚ potassium‚ lithium etc. are very soft metals‚ these can be cut using knife. Strength:- Most of the metals are strong and have high tensile strength. Because of this big structures are made using metals
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state‚ liquid under pressure. Colourless Intensely irritating ammoniacal odour‚ with an odour threshold of 5-53 ppm Soluble in water alcohol and ether. pH of 11.7 Flammability limit of 15.5-25% Auto ignition temperature of 651C Elemental hydrogen and nitrogen gas are abundant and inexpensive. Using temperature 500C and pressure 150-200 atm‚ iron catalyst. Applications Mainly Fertilizer explosives such as TNT and ammonium nitrate Nylon Used for making ice and air conditioning units
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Exercise – Hydrogen Bond Phase Transition (TRACK 2 ONLY) Writing & Marking Rubric Instructions: 1.Go to Core Study Resources → III Symmetry in Crystals → Downloads and Links. 2.Download the following: a. Yoshida et al.‚ Flexibility of Hydrogen Bond and Lowering of Symmetry in Proton Conductor. Symmetry 4‚ 507 – 516 (2012). b. Writing and Marking Rubric Scaled to 22 Marks Beauty‚ Form and Function: An Exploration of Symmetry Writing Exercise 1. Read Flexibility of Hydrogen Bond and
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production. Group # Production (MTPD) Group1 600 Group2 750 Group3 950 Group4 1100 Group5 1300 Group6 1450 Group7 1650 Group8 1800 The production of ammonia requires a mixture of hydrogen and nitrogen in a ratio of 3:1. The source of nitrogen is invariably air. The hydrogen is produced by steam reforming of naural gas followed by autothermic reforming with air. Currently following four commercial processes are available to choose from: 1. Haldor Topsoe Process 2. Linde
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