PPT-Partial Pressure Diagrams

I Introduction Reactions involving a gas phase can be described as a function of gas pressure As an example lets investigate the stability of the Cu oxides and carbonates with respect to the pressure of CO. Gases. 2006, Prentice Hall. 2. CHAPTER OUTLINE. Properties of Gases. Pressure & Its Measurement. The Gas Laws. Vapor Pressure & Boiling Point. Combined Gas Law. Avogadro’s Law. STP & Molar Volume. Phase diagram: plot of pressure vs. Temperature summarizing all equilibria between phases.. Given a temperature and pressure, phase diagrams tell us which phase will exist.. Features of a phase diagram:. Mandeltort. Auburn University. Chapter . 10. GASES. Give It Some Thought. Clicker Questions. Yes. No. Xenon is the heaviest stable noble gas with a molar mass of 131 . g/mol. . Do . any of . the gases listed in Table 10.1 have molar masses . Gaseous Exchange. General factors affecting ‘flow’. F = k * . Δ. P / R. K = constant. Δ. P = delta P, ‘pressure gradient’. R = ‘resistance’ . For exchange of respiratory gases in lungs…. (This is our LAST law!!). Background. John Dalton studied the behavior of gas mixtures. Each component of a gas mixture behaves independently of the others.. Example: A given amount of oxygen exerts the same amount of pressure whether it is alone or in the presence of other gasses.. Gas Pressure. Gas pressure is caused by the molecules colliding with the surface.. In the lungs, the gas molecules are colliding with the surfaces of the respiratory passages and alveoli.. Higher concentrations of gas will produce more collisions and cause a higher pressure.. Given a temperature and pressure, phase diagrams tell us which phase will exist.. Features of a phase diagram:. Triple point: temperature and pressure at which all three phases are in equilibrium. . Vapor-pressure curve: generally as pressure increases, temperature increases.. Our cells continuously use oxygen and produce carbon dioxide. . Both gases move in and out of the lungs through the membranes of the alveoli, the tiny air sacs at the ends of the airways in the lungs.. Problems of Gas phase equilibria 1) Consider the following reaction:CO(g) Cl2(g) COCl2(g)The initial partial pressures are (CO) 2 atm and (Cl) 2 atm. When the reaction reaches equilibrium t Describes the pressure of a particular gas within a mixture. Equals the total pressure times the fractional concentration of the particular gas, . according to Whose Law?. Partial Pressure. Concentration of gases in ambient air. Objectives:. Develop and/or review basic relations for atmospheric temperature, humidity, density, and pressure.. Use the UNR, DRI, and Slide Mountain pressure to estimate the mean virtual temperature of the the layer between the stations.. . Maha. . Saja. Msaja@ksu.edu.sa. Office no. 8 level 3. Let’s summarize what have been discussed so far!. What is the aim of respiration?. Deliver . O. 2. . to tissues. Remove . C. O. 2. . from. Do Now: Convert the following units of pressure. 249 . torr. to . atm. 10432 Pa to . kPa. 2534 . kPa. to mmHg. What causes the pressure of a gas in a closed container?. Impacts of gas molecules with walls of container. A gas mixture with a total pressure of 745 mmHg contains each of the following gases at the indicated partial pressures. CO. 2. – 125 mmHg. Ar. – 214 mmHg. O. 2. – 187 mmHg. The mixture also contains helium gas. What is the partial pressure of the helium gas?.