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3.70. The density of air is to be determined by measuring its pressure and temper- ature for insertion in the ideal-gas equation of state; that is, p = pRT The value of R for air is 287.1 J/kg-K and may be assumed exact for this calculation. The temperature and pressure are measured as T = 55 +0.4°C

3.70. The density of air is to be determined by measuring its pressure and temper- ature for insertion in the ideal-gas equation of state; that is, p = pRT The value of R for air is 287.1 J/kg-K and may be assumed exact for this calculation. The temperature and pressure are measured as T = 55 +0.4°C

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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3.70. The density of air is to be determined by measuring its pressure and temper- ature for insertion in the ideal-gas equation of state; that is, p = pRT The value of R for air is 287.1 J/kg-K and may be assumed exact for this calculation. The temperature and pressure are measured as T = 55 +0.4°C p = 125 +0.5 kPa Determine the nominal value for the density in kg/m³ and its uncertainty.
Transcribed Image Text:3.70. The density of air is to be determined by measuring its pressure and temper- ature for insertion in the ideal-gas equation of state; that is, p = pRT The value of R for air is 287.1 J/kg-K and may be assumed exact for this calculation. The temperature and pressure are measured as T = 55 +0.4°C p = 125 +0.5 kPa Determine the nominal value for the density in kg/m³ and its uncertainty.
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