TITLE.PM5

398 ENGINEERING THERMODYNAMICS dharm \M-therm\Th8-2.pm5 Spheres 12 2.5 m 2.5 m Fig. 8.11 The temperature in both spheres is same ...

IDEAL AND REAL GASES 399 dharm \M-therm\Th8-2.pm5 ∴ 453 T 2 =^10 105 1 . F ()/ HG I KJ γγ− cv = 0.837 kJ/kg K (given) R = R M (^ ...

400 ENGINEERING THERMODYNAMICS dharm \M-therm\Th8-2.pm5 (b) Follows polytropic process with n = 1.4, and (c) A constant temperat ...

IDEAL AND REAL GASES 401 dharm \M-therm\Th8-2.pm5 2.857 =^8 3 0 2857 p F HG I KJ . p 3 = 8 (. )2 8571 0 2857/. = 8 (. )2 857^35. ...

402 ENGINEERING THERMODYNAMICS dharm \M-therm\Th8-2.pm5 (ii)Efficiency of the cycle, ηcycle : ηcycle = Heat received Heat reject ...

IDEAL AND REAL GASES 403 dharm \M-therm\Th8-2.pm5 (i)Using perfect gas equation : Characteristic gas constant, R = R M (^0) =^83 ...

404 ENGINEERING THERMODYNAMICS dharm \M-therm\Th8-2.pm5 Example 8.11. One kg-mol of oxygen undergoes a reversible non-flow isoth ...

IDEAL AND REAL GASES 405 dharm \M-therm\Th8-2.pm5 Example 8.13. Calculate the density of N 2 at 260 bar and 15°C by using the co ...

406 ENGINEERING THERMODYNAMICS dharm \M-therm\Th8-2.pm5 From compressibility charge, corresponding to pr = 0.093 and Tr = 9.1 Z ...

IDEAL AND REAL GASES 407 dharm \M-therm\Th8-2.pm5 3 vcp F H G I K J × (ii) + (iii) gives − − (^30) 2 RT vv bcp()cp (^20) 3 RT ( ...

408 ENGINEERING THERMODYNAMICS dharm \M-therm\Th8-2.pm5 Objective Type Questions Choose the Correct Answer : (a) A perfect gas ...

IDEAL AND REAL GASES 409 dharm \M-therm\Th8-2.pm5 UNSOLVED PROBLEMS IDEAL GASES A vessel of 0.03 m^33 capacity contains gas at ...

410 ENGINEERING THERMODYNAMICS dharm \M-therm\Th8-2.pm5 (iii) Subsequently, the gas cools to the atmospheric temperature of 30°C ...

9 Gases and Vapour Mixtures 9.1. Introduction. 9.2. Dalton’s law and Gibbs-Dalton law. 9.3. Volumetric analysis of a gas mixture ...

412 ENGINEERING THERMODYNAMICS dharm \M-therm\Th9-1.pm5 This is expressed diagrammatically in Fig. 9.1. The gases A and B, origi ...

GASES AND VAPOUR MIXTURES 413 dharm \M-therm\Th9-1.pm5 Mean molecular weight of air = 28.96 Gas constant R = 0.287 kJ/kg K For a ...

414 ENGINEERING THERMODYNAMICS dharm \M-therm\Th9-1.pm5 In general therefore, Vi = p p iV ...(9.8) i.e., ΣVi = pV p V p ∑ i = Σp ...

GASES AND VAPOUR MIXTURES 415 dharm \M-therm\Th9-1.pm5 An apparent molecular weight is defined by the equation M = m n where, m ...

416 ENGINEERING THERMODYNAMICS dharm \M-therm\Th9-1.pm5 Also m = Σ mi [from eqn. (9.3)] ∴ pV RT = pV RT i ∑ i ∴ p R = p R i i ∑ ...

GASES AND VAPOUR MIXTURES 417 dharm \M-therm\Th9-1.pm5 9.5. Specific Heats of a Gas Mixture — As per Gibbs-Dalton law, the inter ...