The normal boiling point of liquid ammonia is 240 K; the enthalpy of vaporization at that temperature is 23.4 kJ mol-1. The heat capacity of gaseous ammonia at constant pressure is 38 J mol-1 K-1. (a) Calculate q, w, AH, and AU for the following change in state: 2.00 mol NH3(e, 1 atm, 240 K) → 2.00 mol NH3 (g, 1 atm, 298 K) Assume that the gas behaves ideally and that the vol- ume occupied by the liquid is negligible. (b) Calculate the entropy of vaporization of NH3 at 240 K.
The normal boiling point of liquid ammonia is 240 K; the enthalpy of vaporization at that temperature is 23.4 kJ mol-1. The heat capacity of gaseous ammonia at constant pressure is 38 J mol-1 K-1. (a) Calculate q, w, AH, and AU for the following change in state: 2.00 mol NH3(e, 1 atm, 240 K) → 2.00 mol NH3 (g, 1 atm, 298 K) Assume that the gas behaves ideally and that the vol- ume occupied by the liquid is negligible. (b) Calculate the entropy of vaporization of NH3 at 240 K.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![The normal boiling point of liquid ammonia is 240 K; the
enthalpy of vaporization at that temperature is 23.4 kJ
mol-1. The heat capacity of gaseous ammonia at constant
pressure is 38 J mol-1 K-1.
(a) Calculate q, w, AH, and AU for the following change
in state:
2.00 mol NH3(e, 1 atm, 240 K) →
2.00 mol NH3 (g, 1 atm, 298 K)
Assume that the gas behaves ideally and that the vol-
ume occupied by the liquid is negligible.
(b) Calculate the entropy of vaporization of NH3 at 240 K.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc713f3ca-ec13-4922-a34e-177b50cf27d3%2F54179527-7d6e-4b43-ba82-df0471b7a70a%2F0ggvabj.png&w=3840&q=75)
Transcribed Image Text:The normal boiling point of liquid ammonia is 240 K; the
enthalpy of vaporization at that temperature is 23.4 kJ
mol-1. The heat capacity of gaseous ammonia at constant
pressure is 38 J mol-1 K-1.
(a) Calculate q, w, AH, and AU for the following change
in state:
2.00 mol NH3(e, 1 atm, 240 K) →
2.00 mol NH3 (g, 1 atm, 298 K)
Assume that the gas behaves ideally and that the vol-
ume occupied by the liquid is negligible.
(b) Calculate the entropy of vaporization of NH3 at 240 K.
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