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Home Concept Builders Thermodynamics Spontaneity and Driving Forces Directions

Spontaneity and Driving Forces - Directions

Using the Spontaneity and Driving Forces Concept Builder is quite simple. There are three different activities. Each activity has its own unique set of tasks to complete. In the first activity - Two Truths and a Lie- you are presented with three statements about wthe concept of spontaneity. Two of the statements are true and one of them is a false statement. You must identify the false statement. You do so by tapping on the statement. Tapping on the statement will select it; a grey box surrounds the statement and a Check Answer button appears. If you change your mind, you can tap on the statement a second time to deselect it or tap on a different statement. Once you are satisfied with your answer, tap on the Check Answer button. Your answers will be evaluated and your Progress Report will be updated.

In the second activity - Matching Pairs- you are presented with 8 terms which you must match according to their meaning. To do so, tap on two terms that mean the same thing to highlight the table cell that the term is located in. If two (and only two) terms are highlighted, a Check Match button is displayed on the right side of the window. If you change your mind, you can tap on the cell a second time to deselect it. When you are satisfied with your answer, tap on the Check Match button. Your pairing will be checked and your progress will be updated and displayed on the right side of the window. Once you successfully match two terms, they are no longer available for subsequent matching. If you mis-match two terms, then you will have to start over. Each time you start over, the terms are re-randomized and appear in a different location in the table and you must begin with 0 matches. This will force you to concentrate on the successful matches that you have already made so that you match them successfully again if you have to start over. Once you successfully match all terms, you will be rewarded the trophy for Matching Pairs.

In the third activity - Reaction Analysis - you are presented with the chemical equation for a reaction and the enthalpy change (∆H) and entropy change (∆S) associated with the reaction. You must identify the conditions for which the reaction is spontaneous - never, always, at higher temperatures only, and at lower temperatures only. You select your choice of an answer by tapping on the answer option - either its text or the radio button located to the left of the text. Once selected, the answer will be highlighted - the text will turn red and the radio button will have a red center. You can tap a second time to deselect the answer. As long as you have selected an answer option, a Check Answer button is displayed at the bottom of the window. If you are satisfied with your answer, tap on the Check Answer button. Your answer will be evaluated and your Progress Report will be updated.

Your goal is to earn "Stars" and to complete one or more activities. Stars are earned when you show success on a particular question. Once you show success on all the questions for a particular activity, you will earn the Trophy for that activity.

Concept Builder Teacher Notes