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Author Archives: Anonymous

How much land is used for food production in the U.S.?

How much land is used for food production in the U.S.?

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Which of the following statements is FALSE? Atmospheric circ…

Which of the following statements is FALSE? Atmospheric circulation zones include:

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Which of the following statements is FALSE? Earth’s atmosphe…

Which of the following statements is FALSE? Earth’s atmosphere:

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The reaction below has a Kp value of 3.3 × 10-5. What is the…

The reaction below has a Kp value of 3.3 × 10-5. What is the value of Kc for this reaction at 700 K?2 SO3(g) ↔ 2 SO2(g) + O2(g)

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Predict the effect of decreasing the temperature on the posi…

Predict the effect of decreasing the temperature on the position of the following equilibria. (1 point each)a) H2(g) + Cl2(g) ↔ 2HCl (g)+ heat ___________________________________b) 2NH3(g) + heat ↔ N2(g) +3H2(g) _____________________________________c) CO(g) +H2O(g) ↔ CO2(g) + H2(g) + heat _______________________________

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The combustion of carbon monoxide is represented by the equa…

The combustion of carbon monoxide is represented by the equation above.(a) Determine the value of the standard enthalpy change, ÄHºrxn, for the combustion of CO(g) at 298 K using the following information. (2 points)(b) Determine the value of the standard entropy change, ÄSºrxn, for the combustion of CO(g) at 298 K using the information in the following table.(2 points)(c) Determine the standard free energy change, ÄGºrxn,for the reaction at 298 K. Include units with your answer.(2 points)(d) Is the reaction spontaneous under standard conditions at 298 K? Justify your answer.(1 point)(e) Calculate the value of the equilibrium constant, Keq , for the reaction at 298 K.(2 points).

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Above what temperature does the following reaction become no…

Above what temperature does the following reaction become nonspontaneous? 2 H2S(g) + 3 O2(g) → 2 SO2(g) + 2 H2O(g) ÄH = -1036 kJ; ÄS = -153.2 J/K

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Use Hess’s law to calculate ÄG°rxn using the following infor…

Use Hess’s law to calculate ÄG°rxn using the following information. NO(g) + O(g) → NO2(g) ÄG°rxn = ? 2 O3(g) → 3 O2(g) ÄG°rxn = +489.6 kJ O2(g) → 2 O(g) ÄG°rxn = +463.4 kJ NO(g) + O3(g) → NO2(g) + O2(g) ÄG°rxn = – 199.5 kJ

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Coronary Artery Disease accounts for upwards of 13% of total…

Coronary Artery Disease accounts for upwards of 13% of total adult morality. 

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To interrupt a child in deep concentration

To interrupt a child in deep concentration

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