Editing CP Review Homework For Energy Test
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<u>Part I: Non-math (multiple choice/fill in blank, short answer) section:</u><br> <b>Revised for 2020-2021 Honors Students</b><br> <br> 1. Define Thermodynamics.<br> <br> 2. What does the 1st Law of Thermodynamic state/mean say about Energy?<br> <br> <br> 3a. What aspect of Energy does 2nd Law of Thermodynamics deal with?<br> <br> 3b. State the 2nd Law of Thermodynamics.<br> <br> 4a. What aspect of Energy does the 3rd Law of Thermodynamics deal with?<br> <br> <br> 4b. What is Absolute zero and what two conditions do you need for this condition.<br> <br> <br> 5. Define Temperature.<br> <br> 6. Temperature and Heat (is a form of energy) are not same. What is the difference between them?<br> <br> <br> <br> 7. State the two most common units of Energy (BTU is not one of them) and the conversion factor between them.<br> (Hint: Look at the two specific heat capacity of water)<br> <br> <br> 8. What is the difference between a Relative Temperature scale (i.e.°C or °F ) and an Absolute Temperature scale (K). What part of the unit shows this?<br> <br> <br> <br> <b>(2020-2021 Honors student DO NOT do rest of questions below)</b><br> ----------<br> <br> 9a. What is happening with the system concerning energy when you:<br> <br> i. Exothermic process/reaction:<br> <br> ii. Endothermic process/reaction.<br> <br> 9b. For an Exothermic process/reaction: is Potential Energy of Reactants (P<sub>r</sub>) Greater than, Less than or Equal to Potential Energy of Reactants (P<sub>p</sub>). Circle correct phrase. <br> <br> Is the sign for ΔH<sub>rxn</sub> (called Heat of Reaction) for an Exothermic reaction Negative or Positive? Circle correct phrase.<br> <br> 9c. For an Endothermic process/reaction: is Potential Energy of Reactants (P<sub>r</sub>) Greater than, Less than or Equal to Potential Energy of Reactants (P<sub>p</sub>). Circle correct phrase. <br> <br> Is the sign for ΔH<sub>rxn</sub> (called Heat of Reaction) for an Endothermic reaction Negative or Positive? Circle correct phrase.<br> <br> <br> 10a. On top of back of this page, draw a Potential Energy diagram for an Exothermic reaction. Then on bottom of back of this page, do the same for an Endothermic reaction. (Hint: It will help in drawing diagrams if you answer Q11 below. It is part of diagram)<br> <br> <br> 11a. What do you call the collision when base particles do rearrange (a chemical reaction)? <br> <br> 11b. What are the two requirement for this collision to occur ?<br> <br> <br> 12. When a substance goes thru its phases, from solid through gas, is that an endothermic or exothermic reaction? Explain<br> <br> 13. In the heat/energy equation (when the substance states in one phase, no phase change), define the following (including statin units)<br> <br> a. First write the mathematical equation here, __________________________<br> <br> b. ΔH<sub>rxn</sub>:<br> <br> c. m:<br> <br> d. ΔT: <br> write down its equation here: _______________________<br> <br> e. c (i.e. c<sub><nowiki>H2O</nowiki></sub>)<br> <br> <br> <br> Part II : Solve the following problems showing all work as shown in your notes).<br> <br> <br>
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