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What is the value of characteristic gas constant(R) in Nm/kg-K?(a) 287.05287(b) 2.8705287(c) 2870.5287(d) 2.8705287I got this question in examination.I would like to ask this question from Characteristics of Atmosphere in chapter Atmosphere and Air Data Measurement of Aircraft Performance

Answer»

The correct CHOICE is (a) 287.05287

For EXPLANATION: The value of characteristic gas constant(R) is 287.05287 Nm/kg-K and the value of universal gas constant (R0) is 8.3145 J/mol. The RELATION between them is R=\(\frac{R0}{M}\) , where R0 is universal gas constant; R is characteristic gas constant and M is molecular WEIGHT of the SUBSTANCE.



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