30.5 KJ of energy * Cells use this released energy to drive processes that are nonspontaneous * ATP captures energy from one process and transmits it to another Aerobic and Anaerobic Respiration: * Respiration: cells obtain energy by using glucose through the process known as repiration * Aerobic respiration: Produces the most energy and requires 02 to oxidise glucose C6H12O6 + 6O2 -> 6CO2 + 6H2O Redox reaction Change in heat = -2860 KJ/ mol Change in heat = -2860 KJ/ mol
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eyes and pale skin. He believed that they were true germans and that germans were the master race. yes tes ewtfrneu asbfiuoahsif asiouhbsiua fasoerhiuosabrj aj buipaebgrkj aejrbfpaiuser kjew riu aer jewkl; bpiuwa rkjw;jbjawk rkjw briuwj rkwjb riwj r kj;wb rwi rj ; wiu rkj iwrkj ihweb kjrkj;b wjk rkj biwhj rk; sd sd f sf fs f e wr we f sf f sfm rtr jr8 r76k8r7k GRSRE TI67 FEGRHYUJ I7 W FE TRHUI67 9 645 WEG RN Y7U8 6 54T GH JUIY7 56 ER FG J UY67 5YER SDFGHY T675 4REW RFG H DS FS DSF DFS DF FD
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1. Introduction In the study of Thermochemistry‚ reactions are quantitatively analyzed to determine the amount of heat that has been transferred‚ whether released or absorbed‚ between the system and its surroundings. Such data is important in realizing the properties of different types of reactions along with the elements and compounds of which they are comprised. However‚ it can be difficult to derive the exact enthalpy in a reaction when multiple processes occur simultaneously. A method
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properties and the phase descriptions in the following table for water. Show all your intermediate work. No 1 2 3 4 5 6 7 8 9 10 190 100 280 400 7000 600 2000 2963.7 Saturated Liquid 60 1750 375 300 4893.1 1800 T (oC) P (kPa) h(kJ/kg) 275 4.00 0.0 Saturated Vapor v(m3/kg) u(kJ/kg) x (quality) Phase description 0.7 Question 2: (20 points) An insulated‚ vertical piston–cylinder device initially contains 10 kg of water‚ 5 kg of which is in the vapor phase. The mass of the piston is such that it maintains
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Ethanol – q=(100g)(4.18J/g/C)(25.5C) q=10659J Propanol – q=(100g)(4.18J/g/C)(21.5C) q=8987J Butanol – q=(100g)(4.18J/g/C)(23.5C) q=9823J ii) Ethanol – 10659J/0.985g= 10.8kJ/g Propanol – 8987J/0.845g= 10.6kJ/g Butanol – 9823J/0.75g = 13.1 kJ/g iii) Ethanol – n=0.985g/46.01g/mol = 0.0214 mol Propanol – n=0.845g/60.01g/mol = 0.0141 mol Butanol – n=0.75g/74.1g/mol = 0.0101 mol iv) Propanol – 8987J/0.0141 mol = 637kJ/mol Ethanol – 10659J/0.0214 mol = 498kJ/mol Butanol – 9823J/0.0101mol
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SCIENCE - FORM 2 Nutrition CLASSES OF FOOD 1. Food is a basic necessity for all living things. 2. Food is important in order to : (a) Provide energy to carry out physical activities. (b) Provide energy for the physiological activities in life such as reproduction‚ digestion and excretion. (c) Build new cells and ti repair tissues in the body.
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WJEC CBAC AS/A LEVEL GCE in Chemistry REVISION AID UNIT 1 AS UNIT CH1 – Controlling and Using Chemical Changes (in order to make things‚ produce energy and solve environmental problems) Preamble This unit begins with some important fundamental ideas about atoms and the use of the mole concept in calculations. Three key principles governing chemical change are then studied‚ viz. the position of equilibrium between reactants and products‚ the energy changes associated with a
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* needs oxygen * only occurs when a certain amount of oxygen is available * C6H12O6 + 6O2 6CO2 + 6H2O + Energy * releases large amount of energy (2900 KJ) * Anaerobic: * without oxygen * [glucose lactic acid] C6H12O6 2C3H6O3 * releases small amount of energy (120 KJ) * poisonous waste (lactic acid) removed to produce joined with O2‚ H2O + CO2 BREATHING * Inhalation: taking air in lungs * muscles contract – diaphragm‚ intercostal
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writer being a catholic royalist and a supporter of King James II (KJ II) perceived this as a divine ruler being taken away from his position. From this experience she therefore‚ wrote a novel whose main character (Oroonoko) has been depicted to resemble KJ II; she describes him as a delightful ruler. Towards the end of the script Onoonoko’s dismemberment has been shown to have similarities with Jesus’ crucifixion which resembles how KJ II kicked out of his throne. At this point both (Oroonoko and Jesus
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6 g/mL. 2.0 kJ 16) Figure 12.17 a) if water is placed in a sealed milk carton at 60 degrees Celsius and sealed tightly and allowed to cool‚ eventually there will be an equilibrium of liquid and vapor. Gas is not able to escape and masses of the liquid and vapor remain constant. b) assuming that the temperature your hand is below 34.6 degrees Celsius‚ liquid diethyl ether should remain a liquid if dropped on your hand. 22) Vapor pressure data for octane C8H18 38.6 kJ/mol‚ normal boiling
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