Question: During a reaction, some of the energy released by the system is used to move a mass up a hill, while the air temperature of the surroundings near the system increases by 50 K. What are the relative values for q, w and AU, respectively? A. q>0 ; w> 0;AU> 0 B. q> 0 ; w< 0 ; AU = 0 C. q< 0 ; w>0; AU = 0 D. q< 0 ; w< 0 ; AU < 0

Question: During a reaction, some of the energy released by the system is used to move a mass up a hill, while the air temperature of the surroundings near the system increases by 50 K. What are the relative values for q, w and AU, respectively? A. q>0 ; w> 0;AU> 0 B. q> 0 ; w< 0 ; AU = 0 C. q< 0 ; w>0; AU = 0 D. q< 0 ; w< 0 ; AU < 0

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Pls help ASAP. Pls show all of your work and give ansewrs in significant figures. Pls write neatly and explain each step.
Part A Open the activity depicting Hess's Law. N:(g) + 0:(g) → 2NOg AH is an Extensive Property N: ( +0:(g) → NO(g) AH is an Extensive Property Click the button within the activity, and analyze the relationship between the two reactions that are displayed. The reaction that was on the screen when you started and its derivative demonstrate that the change in enthalpy for a reaction, AH, is an extensive property. Using this property, calculate the change in enthalpy for Reaction 2. AH Canges sign when a process is revTsed 2NO2) > N:(g) + 0: (g Reaction 1: C3 Hs(g)+ 502 (g)→3CO2 (g) + 4H2O(g), AH1 = -2043 kJ Hess's Law of Constant Heat Sumnation + N: (g) +0: (g) → deg Reaction 2: 5C3 Hs(g) +25O2(g)→15CO2(g) +20H,O(g), AH2 =? When two reactions are added together. the individual reaction enthalpies are summed. Notice that equal quantities of the same species, on both sides of the reaction arrow, cancel. NQg) +0: g) → NO: (g) Express your answer to four significant figures and include the…
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When 3.8 g A are reacted with 8.5 g D, according to the balanced chemical equation below, 33 kJ of energy are released. Please calculate the enthalpy for this reaction when 3 moles of G are produced. 2A + 3D = 2Z + 3G given molar masses: A = 141.8 g/mole D = 63.996 g/ mole Z = 4.032 g/ mole G = 56.028 g/ mole
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I Review | Constants | Periodic Table Open the activity depicting Hess's Law. N:(g) + 0: (g) → 2NOg) Part A AH is an Extensive Property + N: (g) + O:(g) → NO(g) AH is an Extensive Property Click the the screen when you started and its derivative demonstrate that the change in enthalpy for a reaction, AH, is an extensive property. Using this property, calculate the change in enthalpy for Reaction 2. AH Changes sign when a process is nevTNed 2NO2) N:(g) + 0:(g) button within the activity, and analyze the relationship between the two reactions that are displayed. The reaction that was on Hesss Law of Constant Heat Sunnaticn + N: (g) +0: (g) → dog Reaction 1: C3 Hs(g) + 502(g)→3CO2(g) + 4H20(g), AH1 = -2043 kJ When two reactions are added together, the individual reaction enthalpies are summed. Notice that equal quantities of the same species, on both sides of the reaction arnow, cancel. NQig) + +0: → NO: (2) Reaction 2: 5C3 Hs(g) + 2502(g)→15CO2 (g) + 20H2O(g), AH2 =? - N: (g) + O: (g) →…
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