Explanation Write the formula to calculate the pressure of water vapor ( P H 2 O ) . P H 2 O = y f , H 2 O P sat, H 2 O (I) Here, dryness fraction of water vapor is y f , H 2 O , saturation pressure of water is P sat, H 2 O . Write the formula to calculate the pressure of ammonia vapor ( P NH 3 ) . P NH 3 = y f , NH 3 P sat, NH 3 (II) Here, dryness fraction of ammonia vapor is y f , NH 3 , saturation pressure of ammonia is P sat, NH 3 . Write the formula to calculate the total pressure of liquid–vapor mixture ( P t o t a l ) . P t o t a l = P H 2 O + P NH 3 (III) Write the formula to calculate the mole fraction of water vapor ( y f , H 2 O ) . y f , H 2 O = P H 2 O P t o t a l × 100 % (IV) Write the formula to calculate the mole fraction of ammonia vapor ( y f , NH 3 ) . y f , NH 3 = P NH 3 P t o t a l × 100 % (V) Conclusion: Refer table A-5,”Saturation pressure water table”, obtain the saturation pressure of water at 30 ° C as 4.2769 kPa. Substitute 0.4 for y f , H 2 O , and 4.2769 kPa for P sat, H 2 O in Equation (I). P H 2 O = y f , H 2 O P sat, H 2 O = ( 0

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Chapter 16.6, Problem 77P

To determine

The mole fraction of water vapor.

The mole fraction of ammonia vapor.

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Chapter 16.6, Problem 76P

Chapter 16.6, Problem 78P

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EBK THERMODYNAMICS: AN ENGINEERING APPR

Ch. 16.6 - Write three different KPrelations for reacting...Ch. 16.6 - A reaction chamber contains a mixture of CO2, CO,...Ch. 16.6 - A reaction chamber contains a mixture of N2and N...Ch. 16.6 - A reaction chamber contains a mixture of CO2, CO,...Ch. 16.6 - Which element is more likely to dissociate into...Ch. 16.6 - Prob. 6P Ch. 16.6 - Prob. 7P Ch. 16.6 - Prob. 8P Ch. 16.6 - Prob. 9P Ch. 16.6 - Prob. 10P

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