Biofuels. Name: Institution: Course: Tutor: Date: A biofuel is made from a biological process known as carbon fixation. These biofuels are gotten from the conversion of biomass‚ solid biomass‚ liquid fuels as well as biogases. The biofuels are continued to be known because of the high prices of fossil fuels and also for the purposes of ensuring fuel security in various countries. (Caye‚ D. & Terry W.2008). The biofuels are produced from two distinct ways; that is through metabolic by-products
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SPM CHEMISTRY REVISION MODULE FOR THE MASTERY OF THE BASICS IN SPM CHEMISTRY Panel : 1. 2. 3. 4. June Ling S J Chen Soo Chien Felix Ngui Jong Kah Yin SMK St Joseph‚ Kuching Kolej DPAH Abdilah‚ Kuching SMK Tabuan Jaya‚ Kuching SM Sains Kuching REVISION MODULE FOR THE MASTERY OF THE BASICS IN SPM CHEMISTRY Page Compiled and edited by : Jong Kah Yin 1 SPM CHEMISTRY INDEX CONTENT 1 REVISION CHECK-LIST Form 4 Form 5 2 WRITING EQUATIONS 2.1 Charges of ions 2.2 Formulae of compounds
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specific job‚ and they do not die‚ they are reused. For example‚ catalase is an enzyme found in almost all living cells that will break down hydrogen peroxide and turn it into water and oxygen. The breakdown of Hydrogen peroxide happens when it gets released from metabolism‚ and Materials: Yeast Solution 4 Test tubes Graduated cylinder 1 Bottle of Hydrogen peroxide Hydrochloric acid Hot water bath Ice Bath Test tube rack Test tube holder Safety: Wear goggles at all times during lab. When
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Question 2.1: (i) Calculate the number of electrons which will together weigh one gram. (ii) Calculate the mass and charge of one mole of electrons. * ------------------------------------------------- Answer (i) Mass of one electron = 9.10939 × 10–31 kg Number of electrons that weigh 9.10939 × 10–31 kg = 1 Number of electrons that will weigh 1 g = (1 × 10–3 kg) = 0.1098 × 10–3 + 31 = 0.1098 × 1028 = 1.098 × 1027 (ii) Mass of one electron = 9.10939 × 10–31 kg Mass of one mole of
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ical Chemistry 1.which of the following pairs of compound will react? iC3H6+Br2 iiC3H6+Cl2 in sunlight iiiC3H6+H2O in the presence of sulphuric acid ivC3H6+H2O in the presence of concentrated sulphuric acid a.i b.i‚iii c.i‚ii‚iii d.all 2.liqiud y reacts with magnesium metal to produce a gas that burns with a pop sound when a flaming wooden splint is placed near it.liqiud y is most likely a compound that has the formula a.c2h5oh b.hcooh c.h3cooch3 d.c6h14 3.a compound p has the
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The synthesis gas produced have a lack of hydrogen and must be subjected to the water gas shift reaction (equation 3) to improve the H2/CO ratio. The synthesis gas produced from coal is normally in higher need of purification than that produced from natural gas‚ especially sulphur compounds must
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two atoms until a perfect collision occurs. However‚ this type of reaction can release a large amount of energy that can be used in nuclear plants to generate electricity for a whole town. Another use of fusion is as a nuclear weapon to create the hydrogen bomb‚ which uses a fission reaction to "trigger" a fusion reaction.When atoms collide‚ the mass released as particles of neutrons can be used to produce nuclear energy. The law of conservation of mass establish that mass cannot be either created
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ARTICLE IN PRESS Energy 32 (2007) 431–436 www.elsevier.com/locate/energy Hydrogen production by advanced proton exchange membrane (PEM) water electrolysers—Reduced energy consumption by improved electrocatalysis A. MarshallÂ1‚ B. Børresen‚ G. Hagen{‚ M. Tsypkin‚ R. Tunold Department of Materials Technology‚ Group of Electrochemistry‚ NTNU‚ 7491 Trondheim‚ Norway Received 14 October 2005 Abstract Proton exchange membrane (PEM) water electrolysis systems offers several advantages over traditional
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163 CHAPTER 13 HYDROCARBON Hydrocarbons are composed of Carbon and hydrogen. The important fuels like Petrol‚ kerosene‚ coal gas‚ CNG‚ LPG etc. are all hydrocarbons or their mixture. Sources: Petroleum and natural gas are the major sources of aliphatic hydrocarbon while coal is an important source of aromatic hydrocarbons. The oil trapped inside the rocks is known as petroleum. PETRA – ROCK‚ OLEUM – OIL. The oil in the petroleum field is covered with a gaseous mixture known as natural
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• What were the differences between the balloons developed by the Montgolfiers and those developed by J.A.C Charles? • The Montgolfiers used a balloon that was filled with hot air and the balloons developed by J.A.C Charles were filled with hydrogen even though both had the same purpose. • How are balloons‚ dirigibles‚ and airships similar? How are they different? • The balloons‚ dirigibles‚ and airships are similar because they are considered lighter-than-air crafts‚ and they are lifted
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