ch302 - kim (kk24782) Homework 1 vanden bout (51640) This...

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kim (kk24782) – Homework 1 – vanden bout – (51640) 1 This print-out should have 24 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. All homework will be equally weighted re- gardless oF the number oF question on each assignment. 001 10.0 points Substance A has undergone a phase tran- sition (under constant pressure) where ΔH = 10kJ / mol and ΔS = 36J / K · mol. What phase transition could have occurred? 1. condensation 2. deposition 3. Freezing 4. melting 002 10.0 points Rank the Following in order oF increasing va- por pressure at a fxed temperature: H 2 O, CH 3 Cl, He, NaCl 1. NaCl < CH 3 Cl < H 2 O < He 2. He < H 2 O < CH 3 Cl < NaCl 3. NaCl < H 2 O < CH 3 Cl < He 4. H 2 O < CH 3 Cl < He < NaCl 5. H 2 O < NaCl < CH 3 Cl < He 003 10.0 points Answer the Following about CO 2 using the provided phase diagram. What answer choice best describes the tem- perature at the triple point and critical point For CO 2 (triple point temperature, critical point temperature)? Carbon Dioxide 3 1 4 2 200 250 300 350 400 10 0 10 1 10 2 10 3 10 4 Pressure, bar Temperature, K 1. 310 K, 220 K 2. Not enough inFormation 3. 310 K, 310 K 4. 220 K, 220 K 5. 220 K, 310 K 004 10.0 points Which oF the Following constants are needed to calculate the change in enthalpy (ΔH) For heating a sample oF liquid water at 10 o C to steam at 150 o C. I) the heat capacity oF water II) the enthalpy oF Fusion oF water III) the heat capacity oF ice IV) the enthalpy oF vaporization oF water V) the heat capacity oF steam 1. I and III only 2. I, II, IV and V only 3. I and V only 4. I, II, III, IV and V 5. I, IV and V only 6. II and III only
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kim (kk24782) – Homework 1 – vanden bout – (51640) 2 7. I, II and III only 005 10.0 points When a chemical reaction comes to equilib- rium, both the forward and the reverse reac- tions continue, but their rates are equal. For such a system at equilibrium at 300 K and
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ch302 - kim (kk24782) Homework 1 vanden bout (51640) This...

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