vely preting reaFor each chemical reaction listed in the first column of the table below,predict the sign (positive or negative) of the reaction entropy asn. If it'srxnnot possible to decide with the information given, check the "not enoughinformation" button in the last column.oloNote for advanced students: Assume the temperature remains constant.Assume all gases and solutions are ideal.reactionsign of reaction entropyAs< 0rxnMg Cl, (») + H,0() - Mg0(s) + 2H CI (3)As> 0rxnnot enough information.ASrxn2C,H,(2) + 70, (2) → 4C0,(2) + 6H,0(g)ASrxn> 0not enough information.AS< 0rxnMg (OH), (s) + 2H CI (g) → MgCl, (s) + 2H,0()As> 0rxnO not enough information.

Reactions : MgCl2(s) + H2O(L) ---> MgO(s) + 2HCl(g) 2C2H6(g) + 7O2(g) ---> 4CO2(g) + 6H2O(g)…

Qualitatively pre entropy For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy asg. If it's not possible to decide with the information given, check the "not enough information" button in the last column. Note for advanced students: Assume the temperature remains constant. Assume all gases and solutions are ideal. reaction sign of reaction entropy O As < 0 rxn Mg Cl, (s) + H,0(1) → MgO(s) + 2H CI(g) AS > 0 rxn O not enough information. O AS < 0 rxn 20,H, (g) + 70, (3) 4Co, (2) + 6H,0 (3) O ASvo > 0 O not enough information. O AS < 0 rxn Mg (OH), (s) + 2HCI (g) → MgCl, (s) + 2H,0 (1) O As > 0 rxn O not enough information. 国回

Qualitatively pre entropy For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy asg. If it's not possible to decide with the information given, check the "not enough information" button in the last column. Note for advanced students: Assume the temperature remains constant. Assume all gases and solutions are ideal. reaction sign of reaction entropy O As < 0 rxn Mg Cl, (s) + H,0(1) → MgO(s) + 2H CI(g) AS > 0 rxn O not enough information. O AS < 0 rxn 20,H, (g) + 70, (3) 4Co, (2) + 6H,0 (3) O ASvo > 0 O not enough information. O AS < 0 rxn Mg (OH), (s) + 2HCI (g) → MgCl, (s) + 2H,0 (1) O As > 0 rxn O not enough information. 国回

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter17: Chemcial Thermodynamics

Section: Chapter Questions

Problem 17.109QE: Chemists and engineers who design nuclear power plants have to worry about high-temperature...

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Similar questions

In the thermodynamic definition of a spontaneous process, why is it important that the phrase “continuous intervention” be used rather than just “intervention?”
Given that H f for HF(aq) is -320.1 kJ/mol and S for HF(aq) is 88.7 J/mol K, find Ka for HF at 25C.
Explain why absolute entropies can be measured.
Many plastic materials are organic polymers that contain carbon and hydrogen. The oxidation of these plastics in air to farm carbon dioxide and water is a spontaneous process; however, plastic materials tend to persist in the environment. Explain.
What is the sign of the standard Gibbs free-energy change at low temperatures and at high temperatures for the formation of hydrogen sulfide from the elements? H2(g)+18S8(s)H2S(g)
When ammonium chloride is added to water and stirred, it dissolves spontaneously and the resulting solution feels cold. Without doing any calculations, deduce the signs of G, H, and S for this process, and justify your choices.
What types of experiments can be carried out to determine whether a reaction is spontaneous? Does spontaneity have any relationship to the final equilibrium position of a reaction? Explain.
The synthesis of glucose directly from CO2 and H2O and the synthesis of proteins directly from amino acids are both non-spontaneous processes under standard conditions. Yet it is necessary for these to occur for life to exist. In light of the second law of thermodynamics, how can life exist?
Chemists and engineers who design nuclear power plants have to worry about high-temperature reactions because it is possible for water to decompose. (a) Under what conditions does this reaction occur spontaneously? 2H2O(g) 2H2(g) + O2(g) (b) Under conditions where the decomposition of water is spontaneous, do nuclear engineers have to worry about an oxygen/hydrogen explosion? Justify your answer.
The free energy change, G, for a process at constant temperature and pressure is related to Suniv and reflects the spontaneity of the process. How is G related to Suniv? When is a process spontaneous? Nonspontaneous? At equilibrium? G is a composite term composed of H, T, and S. What is the G equation? Give the four possible sign combinations for H and S. What temperatures are required for each sign combination to yield a spontaneous process? If G is positive, what does it say about the reverse process? How does the G = H TS equation reduce when at the melting-point temperature of a solid-to-liquid phase change or at the boiling-point temperature of a liquid-to-gas phase change? What is the sign of G for the solid-to-liquid phase change at temperatures above the freezing point? What is the sign of G for the liquid-to-gas phase change at temperatures below the boiling point?
In thermodynamics, the pathway in a pressure-volume diagram for an adiabatic change is called an adiabat, while the pathway for an isothermal change is called an isotherm. Identify the adiabats and isotherms in Figure 3.2.