The information needed for calculating the entropy change for the given reaction which occurs when 2.25 g of liquid water warmed from 20 o C - 25 o C should be identified. Concept introduction: The universe consists of two parts, systems and surroundings. The entropy change for the universe is the sum of entropy change for the system and for surroundings. Δ S ∘ ( universe ) = Δ S ∘ ( system ) + Δ S ∘ ( surroundings ) where Δ S ∘ = Entropy change The Δ S ∘ ( universe ) should be greater than zero for a spontaneous process. Δ S ∘ ( system ) = Δ r S ° = ∑ n S ° ( products ) − ∑ n S ° ( reactants ) where Δ S ∘ = Entropy change Δ S ∘ ( surroundings ) = − Δ r H o T where Δ S ∘ = Entropy change T = Temperature Δ r H o = Enthalpy change
The information needed for calculating the entropy change for the given reaction which occurs when 2.25 g of liquid water warmed from 20 o C - 25 o C should be identified. Concept introduction: The universe consists of two parts, systems and surroundings. The entropy change for the universe is the sum of entropy change for the system and for surroundings. Δ S ∘ ( universe ) = Δ S ∘ ( system ) + Δ S ∘ ( surroundings ) where Δ S ∘ = Entropy change The Δ S ∘ ( universe ) should be greater than zero for a spontaneous process. Δ S ∘ ( system ) = Δ r S ° = ∑ n S ° ( products ) − ∑ n S ° ( reactants ) where Δ S ∘ = Entropy change Δ S ∘ ( surroundings ) = − Δ r H o T where Δ S ∘ = Entropy change T = Temperature Δ r H o = Enthalpy change
Solution Summary: The author explains the information needed for calculating the entropy change for the given reaction, which occurs when 2.25g of liquid water is warmed.
Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.
Chapter 18, Problem 10PS
Interpretation Introduction
Interpretation: The information needed for calculating the entropy change for the given reaction which occurs when 2.25g of liquid water warmed from 20oC-25oC should be identified.
Concept introduction: The universe consists of two parts, systems and surroundings. The entropy change for the universe is the sum of entropy change for the system and for surroundings.
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
The Laws of Thermodynamics, Entropy, and Gibbs Free Energy; Author: Professor Dave Explains;https://www.youtube.com/watch?v=8N1BxHgsoOw;License: Standard YouTube License, CC-BY