No adiabatic system - Study guides, Class notes & Summaries

Isolated system system cannot exchange mater nor energy with the rest of the universe Closed system system can exchange energy but not matter with the rest of the universe Open system System can exchange energy and matter with the rest of the universe First law of thermodynamics energy in the initial state contained in the system and the rest of the universe is equal to the energy in the final state of the system and the rest of the universe Work force x displace...

What are the most important and distinctive effects of compressibility on flow? Choking and shock waves Are all gases considered as compressible fluids? Are all gas flows considered to be compressible? All gas are considered as compressible fluids, but not all gas flows are considered to be compressible. M < 0.03 incompressible How is the compressibility of a fluid defined? How is it related to the bulk modulus? The bulk modulus of a liquid is related to its compressibilit...

ch20 review questions Which of the following statements is false? Atmospheric oxygen: is necessary for the respiration of multicellular organisms. provides the raw material for ozone. was originally introduced by the photosynthesis of blue-green algae (cyanobacteria). is supplied mainly by chemical breakdown of carbonate rocks like limestone. reached a peak of about 35% during the late Paleozoic (coal age). - ANS is supplied mainly by chemical breakdown of carbonate roc...

Ablation The loss of ice/snow from a galcier system through melting, runoff etc. Abstraction Removal of water from the ground, permanently or temporarily 00:13 01:24 Active layer The part of permafrost which melts during summer months Absolute humidity Measure of water vapour in the air, regardless of temperature, in grams of moisture per m3 of air Adiabatic cooling Cooling of air as it rises Adiabatic expansion Decreasing air pressure as warm air...

15 kg/s of air are compressed from 1 atm and 300K (enthalpy of 300.19 kJ/kg) to 2 atm and 900K (enthalpy of 732.93 kJ/kg). Heat transfer is negligible. The air compressor's power output is most nearly (A) 5.6 MW (B) 6.5 MW (C) 7.6 MW (D) 8.9 MW - answer-B What is most nearly the weight in lbf if a 1.00lbm object in a gravitational field of 27.5ft/s^2? (A) 0.85lbf (B) 1.2lbf (C) 28lbf (D) 32lbf - answer-A A rocket that has a mass of 4000 lbm travels at 27,000 ft/sec. What is mo...

There is a net _______ of energy at the surface and a net _____ of energy by the atmosphere - ANSWER-gain; loss Conduction causes... - ANSWER-heat transfer to air in contact with ground Convection causes... - ANSWER-this air near the surface to rise like a helium balloon mixing heat throughout the atmosphere The energy used to change the phase of a substance and it is transferred in the atmosphere through convection - ANSWER-Latent Heat A cooling process - ANSWER-evaporation A war...

Chapter 03: Patient Safety, Communication, and Record Keeping Test Bank MULTIPLE CHOICE 1. Which of the following is/are a potential area of risk to patients receiving respiratory care? a. movement or ambulation b. electrical shock c. fire hazards d. all the above ANS: C The key areas of potential risk are (1) patient movement and ambulation, (2) electrical hazards, and (3) fire hazards. DIF: Recall REF: p. 42 OBJ: 2| 3 2. Lifting heavy objects is best done with whic...

3B2 - Ultimate ABSA Study Guide C1-15 _____ and carbon rings can be used in reciprocating air compressors to deliver oil free air. a. Brass. b. Aluminum. c. Titanium. d. Ceramic. e. Teflon. - e. Teflon. _____ are essential parts of the burner safety management system. a. Low Water Fuel Cutoffs. b. Flame Scanners. c. Flame Igniters. d. Gas Burner Nozzles. e. Fuel Pressure Gages. - B _____ can be started by use of a compressed air starting motor or applied high ...

Volume and pressure are considered what type of property? Correct Answer state property (how change is made doesn't matter) Isobaric Isothermal Isometric Adiabatic Correct Answer constant pressure constant temperature constant volume No heat flow A state property, or function, is considered to be what type of differential? Correct Answer Exact Differential Using the calculus rule, how could the following derivative be rewritten as 2 partial derivatives? (dx/dz) at constant y C...

What are the standard units of mass, length and time? - Correct answer-Kilograms, metres and seconds What are the SI prefixes for 10^3, 10^6 and 10^9? - Correct answer-kilo, mega, giga What are the SI prefixes for 10^-3, 10^-6 and 10^-9? - Correct answer-milli, micro, nano What is work done? - Correct answer-The energy transferred in moving something What is power? - Correct answer-the rate at which work is done What happens to a gas when it is compressed? - Correct answer-Particles get cl...