(1) Which ote tollowing has the lowest standard (A) N₂Oam (B) NO (2) Which of the following solutions (solute in a solvent) has ion-dipole force? (A) Vitamin C in water (C) NaOH in water (3) Which of the following molecules has instantaneous dipole? (A) CH-CH₂OH (B) H₂O (5) Which of the following systems involves a decrease in entropy: (A) Melting of ice (C) Freezing of a liquid (4) The boiling point of C₂H,SH is 35°C. The enthalpy change of vaporization (AH) is 27.5 KJ/mol. The (D) CO entropy change of vaporization (AS. in J/mol.K) is: (A) 89.3 (B) 27.5 (D) 92.9 (6) Which of the following systems has a negative sign of AS → H₂Om (A) H₂O (B) 12120) (C) 2NO→ 2NO+O AH-112 KJ (D) Answers B and C are both correct (B) NaCl in oil (D) CH-CH₂OH in water (C) Cl₂ (8) For the process H₂Om H₂O. then: (A) AS >0, AS-0, AS <0 (C) AS <0, AS<0, AS-0 (C) 58.5 (B) sublimation of a solid (D) Mixing NaCl in water (7) The solubility of the following gases in water is determined by Henry's law except: (A) CO2(g) (B) O (C) Cla (B) AS,>0, AS (D) AS >0, AS (D) HF <0, AS >0 <0, ASuni <0
(1) Which ote tollowing has the lowest standard (A) N₂Oam (B) NO (2) Which of the following solutions (solute in a solvent) has ion-dipole force? (A) Vitamin C in water (C) NaOH in water (3) Which of the following molecules has instantaneous dipole? (A) CH-CH₂OH (B) H₂O (5) Which of the following systems involves a decrease in entropy: (A) Melting of ice (C) Freezing of a liquid (4) The boiling point of C₂H,SH is 35°C. The enthalpy change of vaporization (AH) is 27.5 KJ/mol. The (D) CO entropy change of vaporization (AS. in J/mol.K) is: (A) 89.3 (B) 27.5 (D) 92.9 (6) Which of the following systems has a negative sign of AS → H₂Om (A) H₂O (B) 12120) (C) 2NO→ 2NO+O AH-112 KJ (D) Answers B and C are both correct (B) NaCl in oil (D) CH-CH₂OH in water (C) Cl₂ (8) For the process H₂Om H₂O. then: (A) AS >0, AS-0, AS <0 (C) AS <0, AS<0, AS-0 (C) 58.5 (B) sublimation of a solid (D) Mixing NaCl in water (7) The solubility of the following gases in water is determined by Henry's law except: (A) CO2(g) (B) O (C) Cla (B) AS,>0, AS (D) AS >0, AS (D) HF <0, AS >0 <0, ASuni <0
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter16: Thermodynamics
Section: Chapter Questions
Problem 5E: Many plastic materials are organic polymers that contain carbon and hydrogen. The oxidation of these...
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