Ratio of specific heat

Comparing this with equation (A.2.2), it is seen to predict exactly the same dependence of che effusion rate on pressure and temperature. Furthermore, Che ratio of specific heats y depends relatively weakly on che nature of the gas, through its molecularity, so che prediction chat dV/dt 1/M, which follows from equation (A-2.2) and agrees with Graham s results, is not markedly inconsistent with equation (A.2.3) either. 

CpfC Ratios of Specific Heats of Gases at 1-atm Pressure.. 2-183... 

Compound Formula Temperature, C Ratio of specific heats, (Y) = C/C. Compound Formula Temperature, C Ratio of specific heats, (Y) = C,/C. 

Ejector Performance The performance of any ejec tor is a function of the area of the motive-gas nozzle and venturi throat, pressure of the motive gas, suction and discharge pressures, and ratios of specific heats, molecular weights, and temperatures. Figure 10-102, based on the assumption of constant-area mixing, is useful in evaluating single-stage-ejector performance for compression ratios up to 10 and area ratios up to 100 (see Fig. 10-103 for notation). 

If tills changes gas composition, a resultant analysis (ratio of specific heats, relative humidity, and compressibility at specific interstage pressure and temperature) must be provided. 

K = Cp/Cv the ratio of specific heats at constant pressure to constant volume. This ratio is 1.4 for most diatomic gases, g = 32.2ft/sec"... 

Gas nitrogen Molecular weight 29 Ratio of specific heats 1.4 Inlet pressure 20 psia Outlet pressure 180 psia Inlet temperature 80°F Weight flow 100 Ib/min... 

Physical and Chemical Properties - Physical State at 15 X and 1 atm. Liquid Molecular Weight S5.W -, Boiling Point at 1 atm. Decomposes-, Freezing PoirU -5.8, -21,252 Critical Temperature Not pertinent Critical Pressure Not pertinent Specific Gravity 0.925 at 25 °C (liquid) Vapor (Gas) Density Not pertinent Ratio of Specific Heats of Vapor (Gas) 1.074 Latent Heat of Vaporization No... 

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