Gibb's Free Energy - Directions

Using the Gibbs's Free Energy Concept Builder is quite simple. There are three difficulty levels, each of which involves the same type of task - providing a numerical answer to complete a table. Additionally, each level includes 4-5 Tap Me! buttons that must be used to identify a reaction as being spontaneous (Yes) or non-spontaneous (No). Numerical values can be entered into a blank cell of a table by tapping on the colored rectangle. A number pad will pop up on the right margin of the Concept Builder. Tap on the buttons of the number pad to enter your answer. When you're done entering your answer, you can tap on the Close Pad to close the number pad. Alternatively, you can tap on a different blank cell and enter the answer for that blank. At any time that you wish to check your entered answers, tap on the Check Answer button. Your entered answers will be evaluated and your progress will be updated. You can tap on the Tap Me buttons to identify whether the reaction is spontaneous or not. Tapping toggles your selected answer back and forth between spontaneous and non-spontaneous. A color-coded system is used to indicate your progress. Correct answers will be displayed on a green-colored cell. Incorrect answers will be displayed on a pink-colored cell. Grey cells indicate an answer that has not yet been checked or is simply blank. A yellow-colored cell is an answer that is in the process of being entered but not yet checked. Once all your answers have been correctly entered, you will be rewarded the Trophy for that difficulty level (Task Tracker users only). (For Guest users, you will simply be returned to the Main Menu.)