Pressure coefficient of the gas
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Pressure coefficient of a gas (β): At constant volume the ratio of increase of pressure per 1°C rise in temperature to its original pressure at 0°C is called pressure coefficient of gas. 5. Regnault's apparatus is used to determine the volume coefficient of a gas.
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A pressure coefficient is a dimensionless number which describes the relative pressures throughout a flow field in fluid dynamics.
It is useful in aerodynamics and hydrodynamics.
Every point in a fluid flow field has its own unique pressure coefficient, C
p
Consider a given mass of a gas is heated through 1 C at constant volume. Now the ratio of the increase in pressure to the original pressure at 0 C is defined as the pressure coefficient.
If P t
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