Web Problem Set 1 - Thermodynamics_ CHEM 205 ALL LECTURES 2023W2 Physical Chemistry

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1/27/24, 11:45 AM Web Problem Set 1 - Thermodynamics: CHEM 205 ALL LECTURES 2023W2 Physical Chemistry https://canvas.ubc.ca/courses/139362/quizzes/702771 1/4 Web Problem Set 1 - Thermodynamics Due Jan 28 at 11:59p.m. Points 8 Questions 8 Available Jan 16 at 12a.m. - Jan 28 at 11:59p.m. Time Limit None Allowed Attempts 2 Attempt History Attempt Time Score LATEST Attempt 1 1,635 minutes 4 out of 8  Correct answers are hidden. Score for this attempt: 4 out of 8 Submitted Jan 27 at 11:45a.m. This attempt took 1,635 minutes. Take the Quiz Again 1 / 1 pts Question 1 A system is being used to convert heat into work. During this process 298 J of heat are transferred to the system which does 693 J of work on the surroundings (by lifting a weight for example). What is the change in internal energy (in J) of the system during this process? -395 1 / 1 pts Question 2

1/27/24, 11:45 AM Web Problem Set 1 - Thermodynamics: CHEM 205 ALL LECTURES 2023W2 Physical Chemistry https://canvas.ubc.ca/courses/139362/quizzes/702771 2/4 Calculate the work, w , (in J) when 9.7 litre of an ideal gas at an initial pressure of 87 atm is expanded to a final pressure of 2.71 atm against a constant exteral pressure of 2.71 atm. Assume that the initial pressure and the final pressure have been measured at the same temperature. -82,844.637 0 / 1 pts Question 3 Incorrect Incorrect Part 1 of a 5 part question: Calculate the work w when 0.9 litre of an ideal gas at an initial pressure of 6 atm is expanded or compressed isothermally to a final volume of 6 litres into a vacuum. Give your answer in J. -1,038.018 0 / 1 pts Question 4 Incorrect Incorrect Part 2 of a 5 part question: Calculate the heat q when 0.4 litre of an ideal gas at an initial pressure of 18 atm is expanded or compressed isothermally to a final volume of 18 litres into a vacuum. Give your answer in J. 2,777.112 1 / 1 pts Question 5

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