PPT-Gas expansion into low pressure volume –

update Barbara Kedzierska BGC regular meeting 2 nd November 2018 Outline Next time Nozzle shape design Nozzle theory Supersonic gas jet into novacuum conditions Slightly underexpanded. 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. C. ontents:. Basic Concept. Example. Whiteboards. P-V diagrams. TOC. The axes. Change volume?. Change pressure?. Volume. Pressure. Isobaric Expansion (+. W). Isobaric Compression (-. W). Iso = same. baric = pressure. Chemistry. Fifth . Edition. Nivaldo. J. . Tro. Chapter . 11. Gases. Dr. Sylvia Esjornson. Southwestern Oklahoma . State University . Weatherford, OK. Extra-Long . Straws . How long is too long when making long straws for drinking soda?. Advanced Problem Solving. Visit: . https://checkin.ics.uci.edu. /. . Log in and select . Chem. 1A. . When prompted, type the word of the day: . tougher. Ensure when asked if you will share your location you select “allow”. . What is the relationship of pressure and volume of a gas sample at a constant temperature?. When you capped the end of the syringe with a certain volume of air in it, then pushed the plunger – what happened to the volume of the air in the syringe? Why?. “Gas Law Practice #3”. And start solving problems:. 1. . If divers rise too quickly from a deep dive, they get a condition called “the bends” which is caused by the expansion of very small nitrogen bubbles in the blood due to decreased pressure. If the initial volume of the bubbles in a diver’s blood is 15 mL and the initial pressure is 12.75 . MABP = CO x TPR. Mean Arterial Blood Pressure. MABP = CO x TPR. Mean Arterial Blood Pressure. Mean Arterial Blood Pressure. = Average blood pressure in an individual, the overall blood pressure within your body.. Pressure . is the result of a force distributed over an area.. . Collisions between particles of a gas and the walls of the container cause the pressure in a closed container of gas. . The SI unit for pressure, the . This tool can measure the temperature, volume, and pressure of a gas. What is temperature?. All particles in all things are moving at all times, but some faster than others. Temperature measures the average speed of the particles in something. changed either . by doing work on the system or by heating it. . Whereas . we may know how . the energy . transfer has occurred (because we can see if a weight has been raised or . lowered in . the surroundings, indicating transfer of energy by doing work, or if ice has . Dr S. Parthasarathy. . MD., DA., DNB., PhD(physiology) FICA,. Dip software based statistics. CUGRA,IDRA.. Professor , Mahatma Gandhi medical college and research institute – Pondicherry . What is it ? . 9-. 2. Questions for Consideration. What are some general properties of gases?. How does the behavior of gases vary with changes in pressure, temperature, volume and number of molecules (atoms)?. What are the mathematical relationships between volume, pressure, temperature, and amount of gas?. Equal volumes of gases contain equal numbers of molecules. Volume of a gas varies directly with the number of molecules if pressure and temperature stay constant. Standard Molar Volume. Volume occupied by 1 mole of a gas at STP. Gas Pressure. Tire . What’s going on inside?. Air:. Nitrogen 78%. Oxygen 21%. Argon ~1%. Carbon Dioxide <1%. Each of these particles are constantly flying around. Like a lotto ball!. They slam against the container and keep the tire “full”. The particles press against the walls..