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3) This a collection of problems that are unrelated to each other unless specifically stated. a) In a Sm x 10m x 1Sm room (like room D219) calculate the mass of air if you are told that the temperature is 290 K and that air has an average molar-mass of 28.8 x 10 kg/m'. b) If a car engine takes in air-fuel mixture at 270 K, and this is compressed adiabatically in the "power stroke", calculate the greatest compression ratio (V/V)the engine could have if the gasoline used ignites at 680 K. What will the pressure be after compression, if the initial pressure is 1.0 atm. Explain clearly! e) Do the calculations of part (b) if you are using high-octant gas, with an ignition temperature of 770 K. d) In a turbo-Diesel engine the compression ratio is 30. If the incoming air is at a 1.2 atmospheres, and its temperature is 310 K, what will the final pressure and temperature be after the adiabatic compression? Explain clearly! e) If the compression had been done in an isothermal manner, what would the final temperature and pressure have been? Explain clearly!

3) This a collection of problems that are unrelated to each other unless specifically stated. a) In a Sm x 10m x 1Sm room (like room D219) calculate the mass of air if you are told that the temperature is 290 K and that air has an average molar-mass of 28.8 x 10 kg/m'. b) If a car engine takes in air-fuel mixture at 270 K, and this is compressed adiabatically in the "power stroke", calculate the greatest compression ratio (V/V)the engine could have if the gasoline used ignites at 680 K. What will the pressure be after compression, if the initial pressure is 1.0 atm. Explain clearly! e) Do the calculations of part (b) if you are using high-octant gas, with an ignition temperature of 770 K. d) In a turbo-Diesel engine the compression ratio is 30. If the incoming air is at a 1.2 atmospheres, and its temperature is 310 K, what will the final pressure and temperature be after the adiabatic compression? Explain clearly! e) If the compression had been done in an isothermal manner, what would the final temperature and pressure have been? Explain clearly!

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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3) This a collection of problems that are unrelated to each other unless specifically stated. a) In a 5m x 10m x 15SM room (like room D219) calculate the mass of air if you are told that the temperature is 290 K and that air has an average molar-mass of 28.8 x 10 kg/m'. b) If a car engine takes in air-fuel mixture at 270 K, and this is compressed adiabatically in the "power stroke", calculate the greatest compression ratio (V,/V,)the engine could have if the gasoline used ignites at 680 K. What will the pressure be after compression, if the initial pressure is 1.0 atm. Explain elearly! c) Do the calculations of part (b) if you are using high-octant gas, with an ignition temperature of 770 K. d) In a turbo-Diesel engine the compression ratio is 30. If the incoming air is at a 1.2 atmospheres, and its temperature is 310 K, what will the final pressure and temperature be after the adiabatic compression? Explain clearly! e) If the compression had been done in an isothermal manner, what would the final temperature and pressure have been? Explain clearly!
Transcribed Image Text:3) This a collection of problems that are unrelated to each other unless specifically stated. a) In a 5m x 10m x 15SM room (like room D219) calculate the mass of air if you are told that the temperature is 290 K and that air has an average molar-mass of 28.8 x 10 kg/m'. b) If a car engine takes in air-fuel mixture at 270 K, and this is compressed adiabatically in the "power stroke", calculate the greatest compression ratio (V,/V,)the engine could have if the gasoline used ignites at 680 K. What will the pressure be after compression, if the initial pressure is 1.0 atm. Explain elearly! c) Do the calculations of part (b) if you are using high-octant gas, with an ignition temperature of 770 K. d) In a turbo-Diesel engine the compression ratio is 30. If the incoming air is at a 1.2 atmospheres, and its temperature is 310 K, what will the final pressure and temperature be after the adiabatic compression? Explain clearly! e) If the compression had been done in an isothermal manner, what would the final temperature and pressure have been? Explain clearly!
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