Renewable and Sustainable Energy Reviews 5 (2001) 343–372 www.elsevier.com/locate/rser A review of absorption refrigeration technologies Pongsid Srikhirin *‚ Satha Aphornratana‚ Supachart Chungpaibulpatana Mechanical Engineering Program‚ Sirindhorn International Institute of Technology‚ Thammasat University‚ PO Box 22 Thammasat Rangsit Post Office‚ Patumthani 12121‚ Thailand Received 11 January 2001; accepted 12 February 2001 Abstract This paper provides a literature review on absorption refrigeration
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ALCANTARA‚ Krtistia Bernardine Date Due: 02/08/2013 PURISIMA‚ Dio Mark Angelo Date Submitted: 02/08/2013 Experiment No. 9 AGAROSE GEL ELECTROPHORESIS OF DNA Abstract _____________________________________________________________________________ Agarose is a polymeric cross-linked polysaccharide extracted from the seaweed agar. Agarose is used widely in gel electrophoresis because it gels at a lower temperature‚ does not contain the inhibitors of virus growth frequently present
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Germany began to use chemicals with artillery shells containing the chemical‚ dianisidine chlorosulfonate. Since this weapon was easily made‚ it was used to save supplies so they didn’t have to use so many explosives. They then began to use xylyl bromide (C8H9Br) in weapons. These were both small-scale attacks. The first large-scale chemical warfare attack was on April 22‚ 1915 in the Second Battle of Ypres‚ when the Germans attacked the allies with chlorine gas. It did not kill very many people
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carbon center. In this experiment‚ our nucleophile is 1-methylimidazole and we will use it to attack 1-bromobutane (our alkyl halide) to form 1butyl-3-methylimidazolium bromide. We will refer to this molecule as [C4−mim]Br‚ C4 referring to the 4 carbon units‚ mim referring to the methylimidazole unit‚ and Br to the bromide counter ion. After an anion exchange reaction‚ you will form [C4-mim]PF6‚ which is a well-known ionic liquid. Most ionic compounds (salts) have very high melting points
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Zinc and Hydrochloric-Acid Written By Kahlil Zione Date:02/02/05 Abstract: We observed the reaction between zinc and hydrochloric acid and recorded it in a table and learned wether the percentage of zinc is effected by the amounts of both substances added to the solution. Introduction The purpose of this experiment is to determine if the amount of zinc and hydrochloric acid will effect the percentage of the zinc in the out coming solution. We are reacting zinc metal with hydrochloric
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certain types of doze alarm-type alarm clocks.It can turn into liquid at room tempurature.It boils at 656.11 F. Mercury is the only metal that is a liquid at standard temperature and pressure. The only other liquid element under standard conditions is bromine‚although the metals rubidium‚ cesium‚ and gallium melt just warmer than room temperature. Mercury has a very high surface tension‚ so it forms rounded beads of liquid.
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at 1500 feet the pressure is 46 atm. (For a helium–oxygen mixture‚ the solubility of helium will depend on its initial partial pressure‚ which will be less than 1.0 atm.) An experiment calls for 36.0 g of a 5.00% aqueous solution of potassium bromide. Describe how you would make up such a solution. A 5.00% aqueous solution of KBr has 5.00 g KBr per 100. g solution. The remainder of the 100. g is water: 95 g. We can use this ratio to determine the mass of KBr in 36.0 g solution: Since
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events‚ it is essential to revisit the ethics of physician involvement in lethal injections. On April 24th‚ 2017‚ it was reported that “the Arkansas Department of Correction leveraged its medical director’s medical license [to acquire] vecuronium bromide‚ a muscle relaxant.” While physicians have autonomy to decide whether they will participate
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2013 Lab-partner: Viktoria R. Beltran RELATIVE RATES OF ELECTROPHILIC AROMATIC SUBSTITUTION I. Objective(s) In this Experiment‚ the relative reactivities of different substituted benzenes towards bromination will be determined‚ where bromine is dissolved in acetic acid. Materials and apparatus Test solutions: 0.2 M solutions in ethyl acetate: Benzene‚ chlorobenzene‚ phenol‚ nitrophenol‚ aniline and acetanilide. Measuring pipettes (5 mL) micro test tubes 0.05 M Br2
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not). 1. 2Al + 3Cl2 ---> 2AlCl3 comb.; yes rxn 2. NH4Cl + NaC2H3O2 ---> NH4C2H3O2 + NaCl d.r.‚no rxn‚ all soluble 3. 2PbO2 ---> 2PbO + O2 dec.; yes rxn 4. 2AlBr3 + 3Ba(OH)2 ---> 2Al(OH)3 + 3BaBr2 d.r.‚ yes rxn 5. Iron III iodide + 3silver bromide ---> FeBr3 + 3AgI d.r.‚ yes rxn 6. 2LiCl + I2 ---> 2LiI + Cl2 s.r‚ no rxn‚ I not replace Cl 7. 4K + O2 ---> 2K2O comb. 8. MgCO3 ---> MgO + CO2 dec.; yes rxn 9 2AlCl3 + 3MgCO3 ----> Al2(CO3)3 + 3MgCl2 d.r.‚no rxn‚ MgCO3 insol. 10. Zn + H2SO4 --->
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