4. Which of the following potential energy diagrams could represent the reaction of N₂O(g) and CS₂(1)? Handwritten A. E, (kJ) C. E, (kJ) 2N₂O(g) + CS₂(1) AH-2 588.0 kJ Reaction progress s(s) + CO₂(g) + 2N₂(g) S,(s) + CO₂(g) + 2N₂(g) 2N₂O(g) + CS,(1) AH+2 588.0 kl B. Reaction progress E, (kJ) D. E, (kJ) only, other wise downote 2N₂O(g) + CS,(1) AH-647.0 kJS,(s) + CO₂(g) + 2N₂(g) Reaction progress S,(s) + CO₂(g) + 2N,(g) 2N,O(g) + CS (1) AH = +647.0 kJ Reaction progress

4. Which of the following potential energy diagrams could represent the reaction of N₂O(g) and CS₂(1)? Handwritten A. E, (kJ) C. E, (kJ) 2N₂O(g) + CS₂(1) AH-2 588.0 kJ Reaction progress s(s) + CO₂(g) + 2N₂(g) S,(s) + CO₂(g) + 2N₂(g) 2N₂O(g) + CS,(1) AH+2 588.0 kl B. Reaction progress E, (kJ) D. E, (kJ) only, other wise downote 2N₂O(g) + CS,(1) AH-647.0 kJS,(s) + CO₂(g) + 2N₂(g) Reaction progress S,(s) + CO₂(g) + 2N,(g) 2N,O(g) + CS (1) AH = +647.0 kJ Reaction progress

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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A chemist measures the enthalpy change AH during the following reaction: P4(s) + 6 Cl₂(g) →4 PC1₂(g) AH-1148. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction PC₁₂ (9) → 4PCL, (g) P₁(s) + 2C₁₂ (9) P₁ (s) + 6Cl₂ (g) P₁ (s) + C₁₂(g) → PCI, (g) ΔΗ [] kJ KJ kJ x10 X
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How much did our sodium-in-water demonstration raise the temperature of water in the dessicator jar? The reaction we performed was: Na(s) + H2O(l) NaOH(aq) + 1/2H2(g) qreaction = rHo = -184 kJ/mol-rxn Assuming the dessicator jar is well insulated (like our coffee-cup calorimeter), the energy balance is: 0 = qsystem = qreaction + qwater qreaction = -qwater qreaction = -mwater*Cwater*Twater The data from the demonstration was: (a) 1.0 kg water, (b) 22.0oC, (d) Cwater = 4.18 J/g-K, (e) mNa = 0.21 g How many moles of sodium were added to the water (in moles)?
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