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Consider each of the following reactions and decide whether the standard entropy change for the reaction will be, (a) Positive; or (b) Very close to Zero; or (c) Negative. N2 (g) + 3 H2 (g) = 2 NH3 1 (g) 1 2 Na (1) + H2 (g) = 2 NaH (s) %3D Cu (s) + 2 H2SO4 (aq) = 1. negative CuSO4 (aq) + 2 H2O (I) + SO2 (g) 2. positive PCI5 (s) = PCI3 (s) + Cl2 (g) %3D 3. very close to zero H2 (g) + Cl2 (g) = 2 HCI (g) %3D BaSO4 (s) + 2 H20 (g) = BaSO4.2H20 (s) 1 2. 2.

Consider each of the following reactions and decide whether the standard entropy change for the reaction will be, (a) Positive; or (b) Very close to Zero; or (c) Negative. N2 (g) + 3 H2 (g) = 2 NH3 1 (g) 1 2 Na (1) + H2 (g) = 2 NaH (s) %3D Cu (s) + 2 H2SO4 (aq) = 1. negative CuSO4 (aq) + 2 H2O (I) + SO2 (g) 2. positive PCI5 (s) = PCI3 (s) + Cl2 (g) %3D 3. very close to zero H2 (g) + Cl2 (g) = 2 HCI (g) %3D BaSO4 (s) + 2 H20 (g) = BaSO4.2H20 (s) 1 2. 2.

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter18: Principles Of Chemical Reactivity: Entropy And Free Energy
Section18.4: Entropy Measurement And Values
Problem 1RC: Without looking up their standard entropies in reference tables, identify which of the following...
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Consider each of the following reactions and decide whether the standard entropy change for the reaction will be, (a) Positive; or (b) Very close to Zero; or (c) Negative. N2 (g) + 3 H2 (g) = 2 NH3 %3D 1 (g) 1 2 Na (I) + H2 (g) = 2 NaH (s) %3D Cu (s) + 2 H2SO4 (aq) = CuSO4 (aq) + 2 H2O (1) + SO2 (g) 2 1. negative 2. positive PCI5 (s) = PCI3 (s) + Cl2 (g) %3D 3. very close to zero H2 (g) + Cl2 (g) = 2 HCI (g) %3D BaSO4 (s) + 2 H2O (g) = 1 BaSO4.2H20 (s) 3.
Transcribed Image Text:Consider each of the following reactions and decide whether the standard entropy change for the reaction will be, (a) Positive; or (b) Very close to Zero; or (c) Negative. N2 (g) + 3 H2 (g) = 2 NH3 %3D 1 (g) 1 2 Na (I) + H2 (g) = 2 NaH (s) %3D Cu (s) + 2 H2SO4 (aq) = CuSO4 (aq) + 2 H2O (1) + SO2 (g) 2 1. negative 2. positive PCI5 (s) = PCI3 (s) + Cl2 (g) %3D 3. very close to zero H2 (g) + Cl2 (g) = 2 HCI (g) %3D BaSO4 (s) + 2 H2O (g) = 1 BaSO4.2H20 (s) 3.
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