Calculate the standard free energy of the following reactions at 25^o�C, using standard free...
Question:
Calculate the standard free energy of the following reactions at 25^oC, using standard free energies of formation.
(a) 2Al(s) + 3Cl2(g) ---> 2AlCl3(s) DeltaG = ? (kJ)
(b) 4HCN(l) + 5O2(g) ---> 2H2O(g) + 4CO2(g) + 2N2(g) DeltaG = ? (kJ)
Gibbs Free Energy
The Gibbs free energy change for a given reaction at standard condition is calculated using
{eq}\Delta G^\circ_{rxn} = \sum n \Delta G^\circ_{products} - \sum n \Delta G^\circ_{reactants} {/eq}, where n is the number of moles.
The values of the {eq}G^\circ_{product} {/eq} and {eq}G^\circ_{reactants} {/eq} at {eq}25^\circ {/eq} are already known elsewhere.
Answer and Explanation: 1
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View this answerPart(a):Consider the following standard Gibbs energy for each reactant and product with the chemical reaction below.
{eq}2Al(s) + 3Cl_2(g)...
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Spontaneous Reactions & Gibbs Free Energy
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Chapter 12 / Lesson 8
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Spontaneous reactions are processes that occur on their own without any outside interference. Review the definition of the spontaneous process, explore concepts such as enthalpy, entropy, and Gibbs free energy, and learn how to predict a spontaneous reaction.
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