Chemistry Practice Problems Entropy Practice Problems Solution: Entropy of Reaction for Nitrogen Dioxide Formation...

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# Solution: Entropy of Reaction for Nitrogen Dioxide Formation Nitric oxides. NO and NO2, contribute to air pollution, acid rain, and the depletion of the ozone layer. After NO forms in the combustion chamber of an automobile engine, it reacts further with oxygen to form NO2. The reaction is given by 2NO (g) + O2 (g) → 2NO2 (g) The following table gives some entropy values: Part ACalculate ΔS°rxn for the reaction 2NO (g) + O2 (g) → 2NO2 (g)

###### Problem

Entropy of Reaction for Nitrogen Dioxide

Formation

Nitric oxides. NO and NO2, contribute to air pollution, acid rain, and the depletion of the ozone layer. After NO forms in the combustion chamber of an automobile engine, it reacts further with oxygen to form NO2. The reaction is given by

2NO (g) + O2 (g) → 2NO2 (g)

The following table gives some entropy values:

Part A

Calculate ΔS°rxn for the reaction

2NO (g) + O2 (g) → 2NO2 (g)

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Entropy

Entropy

#### Q. Part BCalculate the standard entropy change for the reaction P4 (g) + 5O2 (g) → P4O10 (s) using the data from the following table: Express your answer...

Solved • Mon Sep 03 2018 13:16:28 GMT-0400 (EDT)

Entropy

#### Q. Calculate the standard entropy change for the following reaction at 25°C. S° values can be found here. Mg(OH)2 (s) + 2HCl (g) → MgCl2 (s) + 2H2O (g)

Solved • Wed Aug 29 2018 12:43:31 GMT-0400 (EDT)

Entropy

#### Q. The ΔHvap of a certain compound is 28.26 kJ mol and its ΔSvap is 50.01 J•mol-1•K-1. What is the boiling point of this compound?

Solved • Tue Aug 28 2018 12:51:36 GMT-0400 (EDT)

Entropy

#### Q. Calculate the standard entropy change for the following reaction, 2SO2 (g) + O2 (g) → 2SO3 (g) given S° [SO2 (g)] = 248.2 J/K • mol. S° [O2 (g)] = 205...

Solved • Mon Aug 27 2018 15:20:27 GMT-0400 (EDT)