What is AS for the dissolution of ammonium nitrate under standard conditions, given the following reaction equation and standard molar entropy values: NH,NO(s) --> NH4 (aq) + NO, (aq) S"formation (J/mol K) NH&NO3 169.9 NH 143.5 NO 196.9 Enter only your numeric answer in units of J/K, but do not include the units in your answer, Include 1 decimal point with your answer. It is not necessary to include a + sign with your answer, however if your answer is negative please include a- sign in front of your answer.

What is AS for the dissolution of ammonium nitrate under standard conditions, given the following reaction equation and standard molar entropy values: NH,NO(s) --> NH4 (aq) + NO, (aq) S"formation (J/mol K) NH&NO3 169.9 NH 143.5 NO 196.9 Enter only your numeric answer in units of J/K, but do not include the units in your answer, Include 1 decimal point with your answer. It is not necessary to include a + sign with your answer, however if your answer is negative please include a- sign in front of your answer.

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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Consider the thermal decomposition of barium carbonate: BaCO3(s) → BaO(s) + CO₂(g) Substance and State BaO(s) BaCO3(s) CO₂(g) AHᵒf (kJ/mol) Sº [J/(K-mol)] 72.1 112.1 213.6 -548.0 -1213.0 -393.5 Use the data in the table to calculate the standard free-energy change for this reaction at 25 °C. Express your answer to three significant figures and include the appropriate units. HÅ AG° = Value Units ?
Standard Entropy of Reaction Molecular systems tend to move spontaneously to a state of maximum randomness or disorder. Molecular randomness, or disorder, is called entropy and is denoted by the symbol S. As a state function, entropy change, A.S. depends only on initial and final states. AS has a positive value when disorder increases and a negative value when disorder decreases. The following conditions usually result in an increase in entropy: • a change of phase: solid-liquid-gas, an increase in the number of gas molecules, or • a solid dissolving to form a solution. Although the sign of the entropy change can be predicted as described above, the actual value of AS° must be calculated from the absolute entropy values. Sº, of the reactants and products: ASS° (products) - S° (reactants) ▼ Part A Predict the sign of the entropy change. AS°, for each of the reaction displayed. Drag the appropriate items to their respective bins. ▸ View Available Hint(s) Positive Submit H₂O(1) H₂O(g)…
Be sure to answer all parts. For the gaseous reaction of carbon monoxide and chlorine to form phosgene (COCl₂), perform the following calculations. (a) Calculate the AS at 298 K (AH° = −220. kJ/mol and AG° = −206 kJ/mol). kJ/mol K (b) Assuming that AS and AH change little with temperature, calculate AG at 450. K. kJ/mol
8. Note: Please don't write on a paper, I can't understand handwrittens.
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Enter your answer in the provided box. Calculate the standard entropy change for the following reaction at 25°C. 2 Al(s) + 3 ZnO(s) → Al₂O3(s) + 3 Zn(s) Substance Al(s) Al³+ (aq) Al₂O3(s) Zn(s) Zn²+ (aq) ZnO(s) J/K Sº (J/K mol) 28.3 -313.38 50.99 41.6 -106.48 43.9 27
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on Item 3 Review Constants Periodic Table Part C Complete previous part(s) Part D Calculate the standard-state entropy for the following reaction: 1 CHĄ(g) +2 O2(g) → 1 CO2(g) + 2 H2O(1) (If applicable, coefficients of one have been included for clarity.) The standard entropy values are given in the table. S° Formula J/(K-mol) CO2(g) 214 H2O(1) 189 CH4(g) 186 O2(g) 205 Express your answer with the appropriate units. • View Available Hint(s)
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