The molar heat of combustion, A H, of methane is -890.7 kJ mol1. If 0.0500 moles of methane is combusted in a heavy walled steel reactor, and the heat released by the reaction is allowed to be absorbed by the surroundings at 20°C, what is the change in entropy of the surroundings? i J/K Attempts: 0 of 1 used Submit Answer Save for Later

The molar heat of combustion, A H, of methane is -890.7 kJ mol1. If 0.0500 moles of methane is combusted in a heavy walled steel reactor, and the heat released by the reaction is allowed to be absorbed by the surroundings at 20°C, what is the change in entropy of the surroundings? i J/K Attempts: 0 of 1 used Submit Answer Save for Later

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 17.63QE

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The standard molar entropy of iodine vapor, I2(g), is 260.7 J Kl mol-1 and the standard molar enthalpy of formation is 62.4 kJ/mol. a) Calculate the entropy change for vaporization of 1 mol of solid iodine (use data from Table 16.1 or Appendix J). b) Calculate the enthalpy change for sublimation of iodine. c) Assuming that rSdoes not change with temperature, estimate the temperature at which iodine would sublime (change directly from solid to gas).
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