Gases Chapter 5 1 Elements that exist as gases at 250C and 1 atmosphere 2 3 Physical Characteristics of Gases • • • • Gases assume the volume and shape of their containers. Gases are the most compressible state of matter. Gases will mix evenly and completely when confined to the same container. Gases have much lower densities than liquids and solids. NO2 gas 4 Force Pressure = Area (force = mass x acceleration) Units of Pressure 1 pascal (Pa) = 1 N/m2 1 atm = 760
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Heat in physics is defined as energy in transit. It is symbolized with the alphabet Q. (Strong‚ Martin C. The Great Alternative and Indie Discography of Heat) It is mostly connected with different movements of atoms‚ molecules and other particles. These particles either consist of particles that are either hot or cold. High temperature bodies‚ are often caused due to the high heat transfer‚ which is created by chemical reactions‚ nuclear reactions‚ electromagnetic dissipation‚ or mechanical dissipation
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complete reaction‚ what volume of 0.200 mol dm–3 potassium hydroxide solution (KOH(aq))‚ is required to neutralize 25.0 cm3 of 0.200 mol dm–3 aqueous sulfuric acid‚ (H2SO4(aq))? A. 12.5 cm3 B. 25.0 cm3 C. 50.0 cm3 D. 75.0 cm3 4. The temperature in Kelvin of 1.0 dm3 of an ideal gas is doubled and its pressure is tripled. What is the final volume of the gas in dm3? A. B. C. D. 5. What volume of 0.500 mol dm–3 sulfuric acid solution is required to react completely with 10.0 g of calcium
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Devon Backstrom February 5st 2013 PSU Chemistry 222 – Lab 4 Decomposition of Hydrogen Peroxide Abstract: This lab was designed to observe the decomposition of hydrogen peroxide into it oxygen and water. The equation for this reaction is H202 H2O + +1/2O2 thus by measuring volume and pressure of O2 generated the amount of O2 generated can be calculated which in turn can be utilized to determine the concentration of water already in the H2O2 solution. The results determined that 3.02% of the
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Problem 18 ______/6 Problem 19 ______/8 Problem 20 ______/4 Problem 21 ______/24 Problem 22 ______/4 Total points______________________/150 (plus 4 possible extra credit points) volume of a cylinder = πr2h Form A 1) Convert 127° F to Kelvin? A) 95.0 K B) 475 K C) 53.8 K D) 400 K E) 326 K 2) In what ratio do the elements represented by the electron configurations 1s22s22p63s1 and 1s22s22p3 combine to form a compound? A) 3:1 respectively B) 2:3 respectively C) 3:2 respectively
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Heat is transferred spontaneously from warmer objects to cooler objects. Temperature (T) is a measure of the average kinetic energy of the particles that make up a substance (unit of Celsius; oC or Kelvin; K). [pic] Enthalpy and Energy Change The enthalpy (H) of a substance is defined as the total internal energy of that substance at a constant pressure. However‚ there is no way to determine the absolute enthalpy of a substance because there
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of Monterey High School’s 15-5-2 playoff season as a senior. He claimed honorable mention All-District 2-5A honors as a defender. The Plainsmen had their season come to an end in the Class 5A Bi-District round with a loss to El Paso Socorro. Kelvin Brown Kelvin transfers to Lubbock Christian University after playing junior college soccer for Mountain View College in Oak Cliff‚ Texas. He played defense under head coach Steve Rodriguez. A graduate of Cedar Hill High School in Cedar Hill‚ Texas‚ he received
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UNIVERSITY NAME: JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY STUDENT NAME: KELVIN WAIGANJO REG NO: BIT-C007-0051/2012 COURSE NAME: RESEARCH METHODOLOGY COURSE CODE: HBC 2203 CITE TITLE: A research project submitted in partial fulfillment of the award of BIT Degree of JKUAT. LECTURER: MOSES THIGA CHAPTER ONE Online Rent Payment System For Apartments 1.0 INTRODUCTION The research problem is all about the issue of collection of money for rent
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God‚ the giver of life‚ good health and knowledge for in Him I wait patiently for success‚ prosperity and love. Additionally‚ I wish to take this opportunity to express my immense gratitude and appreciation to Mr. Chimezie Ifediniru and Mr. and Mrs. Kelvin Ekpeni for their sustained support and parental
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How do Bunsen Burners Work? Problems: How should a Bunsen burner be lit and adjusted to attain a blue flame? What is the hottest part of a Bunsen burner flame? Is burning the gas a chemical or physical change? Is it endothermic or exothermic? Hypothesis: The Bunsen burner should be lit by striking the match first‚ turning on the gas‚ igniting the gas‚ and adjusting the flame using the gas flow valve‚ the collar‚ and the table gas release to achieve a blue flame. I predict that the hottest part
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