certain reaction has AHO +25.9 kJ and AS +55.9 J/K ▼ Part A Is the reaction exothermic or endothermic? O exothermic O endothermic Submit Request Answer Part B Does the reaction lead to an increase or decrease in the randomness or disorder of the system? O increase O decrease Submit Part C Request Answer Calculate AG for the reaction at 298 K. Express the free energy change in kilojoules to three significant figures. AG" = ΠΑΣΦ + A tyw kJ I

certain reaction has AHO +25.9 kJ and AS +55.9 J/K ▼ Part A Is the reaction exothermic or endothermic? O exothermic O endothermic Submit Request Answer Part B Does the reaction lead to an increase or decrease in the randomness or disorder of the system? O increase O decrease Submit Part C Request Answer Calculate AG for the reaction at 298 K. Express the free energy change in kilojoules to three significant figures. AG" = ΠΑΣΦ + A tyw kJ I

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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When nitric acid reacts with hydrazine (i.e. dinitrogen tetrahydride), nitrogen gas and water are formed. The temperature is constant at 25°C.4 HNO3(aq) + 5 N2H4(l) " 7 N2(g) + 12 H2O(l)Substance ΔHf° (kJ/mol) S° (kJ/mol K)HNO3 (aq) –133.9 0.2669H2O (l) –285.8 0.0700N2 (g) 0 0.1916N2H4 (l) +50.6 0.1212a. Calculate ΔH° (in kJ/mol) and ΔS° (in kJ/mol K).b. Calculate ΔG° (in kJ/mol).c. Determine K for this reaction.
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Given the information A+B 2D AH = 761.8 kJ AS 305.0 J/K C D AH° = 413.0 kJ AS = -164.0O J/K calculate AG at 298 K for the reaction A +B 2C AG = -124.434 Incorrect
2req For the reaction 2req 2NO(g) + 2H2(g) N2(g) + 2H20() 2req AH° = -752 kJ and AS° = -352 J/K 2req AG° would be less than zero at temperatures (above, below) K. 2req Enter above or below in the first box and enter the temperature in the second box. Assume that AH° and AS° are constant.
Consider the reaction 4HCI(g) + O₂(g)- +2H₂O(g) + Using the standard thermodynamic data in the tables linked above, calculate AG for this reaction at 298.15K if the pressure of each gas is 13.76 mm Hg. ANSWER: 187.91 2Cl₂(g) kJ/mol
Please use correct sig fig in answer.
Part A Calculate the standard change in entropy for the reaction. 2 NH3(g) + 2O2(g) → N₂O(g) + 3 H₂O(g) ► View Available Hint(s) O -9.6 J/K O 811.2 J/K O 10.8 J/K
1315 Exam 2 Review Pro x 1o Chem101 N Netflix + x + i app.101edu.co ☆ To * Question 22 of 30 Subm How much heat, in kJ, will be absorbed by a 25.0 g piece of aluminum (specific heat = 0.930 J/g.°C) as it changes temperature from 25.0 °C to 76.0 °C? A) 5.34 kJ B) 1190 kJ C) 1.19 kJ D) 5340 kJ i 10:03 esc @ 23 2$ & * 2 3 4 5 6 7 8 9 backspace r tab e y d f k enter shift V n m shift alt alls
How much energy is evolved during the reaction of 15.50 g of Na, according to the reaction below? 2Na(s) + 2H₂O(l) → 2NaOH(aq) + H₂(g) AH°rxn= -367.5 kJ 247.8 kJ 482.9 kJ 119.0 kJ 4200 kJ Answer 123.9 kJ 753.3 kJ
3. Calculate AS at 25°C and 1 atm pressure in J/(mol-K) for the following reaction CH4(8) + N₂(g) + 164 kJ → HCN(g) + NH3(8) AG° = 159 kJ. [a] 1x10² [b] 2 [c] 4x10² [d] 2x10¹ [e] 7x10¹