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Answer the following question. Show the answer on the screen provided. After uploading your exam, take the picture of your work and upload it to Exam 4 Solutions, Extra Credit, and Partial Credit assignment. Your work must reflect the answer provided here. NO CREDIT will be awarded for the answer without work shown. Standard Enthalpies of Formation, in kJ/mol ΔHof     ΔHof NO(g)       +90.25           NO2(g)      +33.2        NH3(g)     -45.9          N2O(g)        81.6   H2O(l)        -285.8         H2O(g)         -241.8 Use the properties of enthalpy as a state function (version of Hess’s law) and  data above to calculate the enthalpy change for the reaction (Hint: Do not forget about the coefficients):                                         8 NO2(g)  + 6 NH3(g)  =>  7 N2O(g)  +  9 H2O(g)                      ΔH = ?  

If the heat produced by the reaction of combustion of 1 mole of ethanol is 8 kJ/mol, (see the thermochemical equation below), how much heat in kJ is produced by the combustion of 155 g of ethanol at the same conditions (MMethanol= 46.07 g/mol)? C2H6O(g) + 3O2(g)  → 2CO2(g) + 3H2O(g);       ∆H°rxn=−1366.8 kJ/mol  

Use the appropriate gas law and units to calculate the pressure exerted on a 10.0L container with only 5.0 g of CO2(g) at a temperature of 25 oC

Explain traditional chronology used in history and art history, define terms “b.c.”, “a.d.”, “c”, and no letters accompanying date; describe also religiously neutral chronology – “b.c.e.” and “c.e.”:

Old Stone Age people

A good example of a Paleolithic sculpture-in-the-round is

Which of the following is a logical interpretation of the Venus of Willendorf?

Paleolithic paintings of animals in Western Europe usually have been found

Identify artwork pictured; analyze it – what different values of art would you apply to this artwork; speculate as to its meaning according to 2 different methodologies of art history (choose from the list below): Values of Art:         Material value                                  Intrinsic value                                  Religious value                                  Nationalistic value                                  Psychological value Methodologies of Art History:  Formalism                                                       Iconography and Iconology                                                       Marxism                                                       Feminism                                                       Biography and Autobiography                                                       Semiology                                                       Deconstruction                                                       Psychoanalysis venusofwillendorf.png 

Describe Egyptian conventions for depicting humans (of different status in their society) and animals in their art, and the reasons for the differences. Compare with other cultures from this unit.