6A. State whether each of the following is true or false. Explain your reasoning in each case. (a) q must be zero for an isothermal process (b) q=0 for every cyclic process [A cyclic process is one that begins in one state and undergoes several steps which ultimately bring the system back to the same initial state.] (c) DU=0 for every cyclic process. (d) DT=0 for every adiabatic process in a closed system.

6A. State whether each of the following is true or false. Explain your reasoning in each case. (a) q must be zero for an isothermal process (b) q=0 for every cyclic process [A cyclic process is one that begins in one state and undergoes several steps which ultimately bring the system back to the same initial state.] (c) DU=0 for every cyclic process. (d) DT=0 for every adiabatic process in a closed system.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter16: Thermodynamics: Directionality Of Chemical Reactions

Section: Chapter Questions

Problem 121QRT

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Your answer is partially correct. For the chemical reaction Al203(s) + 3H2(g,p = 1 bar) 2AI(s) + 3H20(1) at T = 298 K, answer each of the following by doing a quantitative calculation of the appropriate thermodynamic function: (a) Is this a spontaneous reaction? AG°reaction i kJ. The reaction is not spontaneous. (b) Does the reaction absorb or release heat? ΔΗreaction - i kJ. The reaction absorbs + heat. (c) Are the products more or less dispersed than the reactants? AS° reaction i J/K. Entropy decreases ÷ so the products are more + dispersed than the reactants. eTextbook and Media Save for Later Attempts: 1 of 3 used Submit Answer
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