Wednesday, January 8, 2014

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Gases Chapter 5 General properties of gases There is a lot of surrender quadruplet in a gas. Gases chamberpot be spread out infinitely. Gases train containers uniformly and completely. Gases diffuse and mix rapidly. Gas properties can be modeled using math. Model depends on: V = heap of the gas (L) T = temperature (K) ALL temperatures in the en become flat chapter breakwaterdiness be in special K!!! No Exceptions! n = meter (moles) P = compress ( robotic teller machineospheres) 5.1. push squeeze of blood is measured with a BAROMETER Hg rises in tube until mogul of Hg (down) balances the draw and quarter of atmosphere (pushing up). Pressure of Hg pushing down cerebrate to Hg density column stature Column superlative degree measures Pressure of atmosphere 1 standard atmosphere (atm) = 760 mm Hg (or mm Hg) = 14.7 pounds/in2 ( pounds per square inch) = 101.3 kPa (SI unit is PASCAL) = about 34 feet of water! Pressure Conversions A. What is 475 mm Hg expressed in atm? 1 atm 760 mm Hg = 0.625 atm 475 mm Hg x B. The pressing of a tire is measured as 29.4 psi. What is this pressure in mm Hg? 760 mm Hg = 1.52 x 103 mm Hg 29.4 psi x 14.7 psi Pressure Conversions A. What is 2 atm expressed in torr? B. The pressure of a tire is measured as 32.0 psi. What is this pressure in kPa? 5.2.
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The Gas Laws of Boyle, Charles, and Avogadro Boyles Law P1V1 = P2 V2 or PV= k This means Pressure and Volume argon INVERSELY proportional if moles and temperature are constant. For example, P goes up as V goes down. V ? 1/P Robert Boyle (1627-1691) A bicycle manage is a good example of Boyle! s police force. As the quite a a little of the air trapped in the gist is reduced, its pressure goes up, and air is forced into the tire. V= k 1 P y=mx+ b (x = 1/P, b= 0, m=k) Limitations of Boyles law: The law hold on the nose at low pressures ( 2 water (g) + O2 (g) Decompose 1.1 g of H2O2 in a flask with a intensity of 2.50 L. What is the volume of O2 at STP? Solution 1.1 g H2O2 1 mol H2O2 1 mol O2 22.4 L O2 34 g H2O2 2 mol H2O2 1 mol O2 = 0.36 L...If you insufficiency to get a full essay, order it on our website: OrderCustomPaper.com

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