Q.

For a compressible, ideal gas, mass flow rate depends on parameters such as flow area, pressure, temperature, properties of the gas, and                    

A. avogardo’s number
B. mach number
C. reynold’s number
D. le-grange’ number
Answer» B. mach number
Explanation: mass flow rate should depend on the velocity. here mach number denotes the velocity. so, the mach number gives the right answer.
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