1. Classify the following reactions as homogeneous or heterogeneous (highlight one) a. 2 SO₂(g) + O₂(g) = 2 SO3(g) homogeneous or heterogeneous b. 2NaHCO3(s) Na₂CO3(s) + H₂O(g) + CO₂(g) homogeneous or heterogeneous c. 3 H₂(g) + N₂(g) = 2 NH3(g) homogeneous or heterogeneous d. H₂O(g) + C(s) = H₂(g) + CO(g) homogeneous or heterogeneous homogeneous or heterogeneous e. Cu(s) + 2 AgCl(aq) = CuCl,(aq) + 2 Ag(s)
1. Classify the following reactions as homogeneous or heterogeneous (highlight one) a. 2 SO₂(g) + O₂(g) = 2 SO3(g) homogeneous or heterogeneous b. 2NaHCO3(s) Na₂CO3(s) + H₂O(g) + CO₂(g) homogeneous or heterogeneous c. 3 H₂(g) + N₂(g) = 2 NH3(g) homogeneous or heterogeneous d. H₂O(g) + C(s) = H₂(g) + CO(g) homogeneous or heterogeneous homogeneous or heterogeneous e. Cu(s) + 2 AgCl(aq) = CuCl,(aq) + 2 Ag(s)
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Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.159QP: The carbon dioxide exhaled in the breath of astronauts is often removed from the spacecraft by...
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Concept explainers
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Question
Transcribed Image Text:What is Keq?
The equilibrium constant, Kea, expresses the relationship between the reactants and products
for a reaction at equilibrium. There are two types of equilibrium reactions:
Homogenous: The states of matter are all the same.
Heterogeneous: The states of matter differ.
1. Classify the following reactions as homogeneous or heterogeneous (highlight one)
a. 2 SO₂(g) + O₂(g) = 2 SO³(g)
homogeneous or heterogeneous
b. 2NaHCO3(s) Na₂CO3(s) + H₂O(g) + CO₂(g) homogeneous or heterogeneous
c. 3 H₂(g) + N₂(g) = 2 NH3(g)
homogeneous or heterogeneous
homogeneous or heterogeneous
d. H₂O(g) + C(s) = H₂(g) + CO(g)
homogeneous or heterogeneous
e. Cu(s) + 2 AgCl(aq) = CuCl,(aq) + 2 Ag(s)
riting Equilibrium Constants - Homogeneous Reactions
is the universal equilibrium constant for reactions. It is a ratio of the amount of product to
e amount of reactant in the reaction mixture. To write an equilibrium constant expression:
Put the products on top and the reactants on bottom.
contrations in molarity (M, mol/L).
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