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LARN 149 C38D1

Start the following in class:

Please print out your In-Progress Grading Task Summary for Marking Periods (Terms) 1, 2, and 3, along with the Term 4 Grade Detail for activities accomplished thus far.  Show this document to your parents or guardians and discuss your progress.  Then print your circled hand in number followed by your name in the upper right corner of the first page, have your parent(s) or guardian(s) sign the in-progress report, label the identity of who signed the report (dad, mom, or guardian), bring the parent/guardian signed progress report in tomorrow and give it to me in class.  If you are not meeting me for class on this particular day, please drop off the labeled, signed report with me before or during school in room A235.

1.  Write your journal entry on sheets of three holed 8.5 inch by 11 inch ruled paper in your Journal notebook. In the upper right corner white space of each upward facing page, write your hand in number within a circle followed by your name. Each journal entry should either be at least a paragraph of exemplary writing and penmanship concerning a single topic, or be a concept map relating chemistry terms. Begin each day’s paragraph with a topic sentence, follow with explained instances, and close with a focused summary statement.  Rather than just to find answers to questions, the goal of journaling is to reflect on, synthesize, and clearly express your thoughts in statements of your own understanding, so do not paraphrase material from other sources that you do not understand.

The first required learning journal topics, J149, for today are

a. Compare the typical outcomes of spontaneous processes to those of nonspontaneous processes. [See page 567 in your text.]

b. Explain whether a decrease in enthalpy tends to cause a reaction to become spontaneous at a given temperature.

c. Explain whether a decrease in entropy tends to cause a reaction to become spontaneous at a given temperature.

d. Explain whether a decrease in Gibbs free energy tends to cause a reaction to become spontaneous at a given temperature.

2.  Review your notes on relation of the change in enthalpy, ΔH,  and change in entropy, ΔS, for a changing chemical system and the resultant change in Gibb’s free energy for that chemical system, ΔG. (ΔG = ΔH – ΔS at constant T and P) [This topic can be reviewed using the pages at the end of the ActivInspire flipchart for C17 Thermochemistry.] In your Learning Log do problems E18-57, E18-58, E18-59, E18-60ab, E18-61ab, E18-62, E18-63, E18-64 on page 581.

3.a. Use the PQ5R or SQ5R method to prepare study guide for text section 18.5 on The Progress of Chemical Reactions or go to https://socratic.org/chemistry to research the topics brought up in section 18.5 of your text.  Read section 18.5 in your chemistry text, pages 575 through 580, and as you do, create a study guide using the SQ5R or PQ5R method explained in class and on the distributed handout packet. You may record vocabulary entries in the body of your study guide, or you may check them off on the chapter 18 vocabulary list that was distributed as you think about the meanings of the terms and add any notations to the vocabulary list for clarifications sake.

1.b. After you have finished reading the assigned section of the chapter, answer the formative assessment questions and do some formative assessment problems to inform you about the degree of your comprehension and understanding.  Assessment questions are printed at the end of the section that you have just read.  Reflect on your answers to assure yourself that you have understood the major points in the section that you have just read.  Record your responses to questions that are challenging you, so that you can later review what you are learning.  If all problems seem easy to you, record the response to the problem that was least easy for you to answer.

Writing in blue or black ink, place your hand in number in a circle followed by your name in the upper right white space of a piece of three holed composition paper that hasn’t been written on.  Place the page reference for the problems to be considered to the left of the red marginal line on the first blue line.  Centered on the first blue line, write a descriptive title for the learning activity such as Section C1.4 Responses where C1.4 represents Chapter1.section4.  Before you write your response to each question or problem listed below, write its designation to the left of the red marginal line as listed below, followed by your response in ink to the right of the marginal line.

If solving the problem entails the use of multiplication or division, show your work by including a ? followed by the unit of the quantity you are solving for, an = sign, followed by the quantity given that has all or part of the dimensions of whatever quantity you are solving for, followed by mathematical operations on all labeled quantities, conversion ratios or comparison ratios that are used to obtain the sought for quantity.

  • Study Conceptual Problem 18.2 on page 577 which shows howto discover the order of a reaction by considering the type of relationship that exists between the change in the initial concentration of a reactant and the resulting observed change in the initial rate of the reaction. Answer the questions and explain your reasoning for practice problems I18-36 (In chapter 18, problems 36) and I18-37ab.
  • In the Section Assessment 18.5 on page 579, read, analyze, describe and explain practice problems I18-38 (In chapter 18, problem 38), I18-39, I18-40abcd, I18-41, and I18-42.

After you have finished responding to the formative assessment questions and problems, check page R97 of the text and check each of those problems that you can by writing in either a check mark (√) or a correction in green ink.  Write down any question that you still have so that you can ask about it in class.  In the margin of your notebook page, circle the number of formative assessment questions do not have a suggested response given and check your response with that of your classmates when you come to class.

Recommended for those who have time left in their 45 minute study period, but not required of all:

1. For your second learning journal entry, J149B, on your three holed 8.5 inch by 11 inch ruled paper, you are to construct a concept map.

Please turn to page 580 in your text and, in your learning journal, construct a concept map relating the following seventeen terms:

  • activation energy,
  • activated complex,
  • catalyst,
  • collision theory,
  • elementary reaction,
  • first-order reaction,
  • inhibitor,
  • intermediate,
  • rate,
  • rate law,
  • rate determining step,
  • reaction mechanism,
  • reversible reaction,
  • specific rate constant,
  • initial state,
  • final state,
  • transition state.

Copy the terms onto your page, draw ovals around each term, and connect the ovals surrounding related terms with arrows.  Draw the arrows such that the subject of each sentence explaining the relationship is at the tail of the arrow, the verb describing the relationship of the subject to the predicate is written beside the arrow, and the object or predicate nominative of the verb that you have chosen is being touched by the arrow head.