2010F - CHEM 126101 Chapter 17 Regular Homework Thermodynamics I

2010F - CHEM 126101 Chapter 17 Regular Homework Thermodynamics I

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10F - CHEM 126101 - GEN CHEMISTRY II You are logged in as Andrew Sindt ( Logout ) You are here NJIT / ► 2010F - CHEM 126101 / ► Quizzes / ► Chapter 17 Regular Homework: Thermodynamics I / ► Review of attempt 6 Chapter 17 Regular Homework: Thermodynamics I Review of attempt 6 Started on Saturday, 30 October 2010, 11:27 PM Completed on Saturday, 30 October 2010, 11:28 PM Time taken 13 secs Finish review
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Marks 18/22 Grade 8.18 out of a maximum of 10 ( 82 %) Question 1 Marks: 1 The following process occurs at constant pressure. Which of the following statements are correct regarding the work done on the system (consider only PV work from gases) for Fe 2 S 3 (s) + 6HNO 3 (aq) → 2Fe(NO 3 ) 3 (aq) + 3H 2 S(g). Choose at least one answer. a. w is negative b. w is positive c. meaning the work done increases the energy of the system d. meaning the work done increases the energy of the surroundings e. because there are more moles of product gas than reactant gas f. because there are less moles of product gas than reactant gas Correct Marks for this submission: 1/1. Question 2 Marks: 1 The following process occurs at constant pressure. Which of the following statements are correct regarding the work done on the system (consider only PV work from gases) for CH 4 (g) + 2O 2 (g) → CO 2 (g) + 3H 2 O(l). Choose at least one answer. a. w is negative b. w is positive c. meaning the work done increases the energy of the system d. meaning the work done increases the energy of the surroundings e. because there are more moles of product gas than reactant gas f. because there are less moles of product gas than reactant gas Correct
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Marks for this submission: 1/1. Question 3 Marks: 1 Calculate the work (in kJ) when 1.30 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K: 2Na(s) + 2H 2 O(l) → 2NaOH(aq) + H 2 (g) Answer: Hint, is the work (-) or (+)? Correct Marks for this submission: 1/1. Question 4
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This note was uploaded on 11/09/2010 for the course CHEM Chem taught by Professor Petrova during the Spring '09 term at NJIT.

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2010F - CHEM 126101 Chapter 17 Regular Homework Thermodynamics I

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