Interpretation:
To calculate the enthalpy and free energy change for the given reaction.Check whether this reaction is exothermic or endothermic and is the reaction is product or reactant favoured at eqauilibrium.
Concept introduction:
The Gibbs free energy or the free energy change is a
The enthalpy change is expressed by the formula,
If the value of enthalpy change is negative, the reaction is exothermic.
If the value of free energy change is negative, then the reaction is product-favored at equilibrium.
Want to see the full answer?
Check out a sample textbook solutionChapter 21 Solutions
Bundle: Chemistry & Chemical Reactivity, Loose-Leaf Version, 9th + OWLv2, 4 terms (24 Months) Printed Access Card
- Using the standard enthalpy of formation data in Appendix G, calculate the bond energy of the carbon-sulfur double bond in CS2.arrow_forwardThe reaction of quicklime, CaO, with water produces slaked lime, Ca(OH)2, which is widely used in the construction industry to make mortar and plaster. The reaction of quicklime and water is highly exothermic: CaO(s)+H2O(l)Ca(OH)2(s)H=350kJmol1 (a) What is the enthalpy of reaction per gram of quicklime that reacts?. (b) How much heat, in kilojoules, is associated with the production of 1 ton of slaked lime?arrow_forwardAlthough nitrogen trifluoride (NF3) is a thermally stable compound, nitrogen triiodide (NI3) is known to be a highly explosive material. NI3 can be synthesized according to the equation BN(s) + 3IF(g) BF3(g) + NI3(g) a. What is the enthalpy of formation for NI3(s) given the enthalpy of reaction (307 kJ) and the enthalpies of formation for BN(s) (254 kJ/mol), IF(g) (96 kJ/mol), and BF3(g) (1136 kJ/mol)? b. It is reported that when the synthesis of NI3 is conducted using 4 moles of IF for every 1 mole of BN, one of the by-products isolated is [IF2]+[BF4]. What are the molecular geometries of the species in this by-product? What are the hybridizations of the central atoms in each species in the by-product?arrow_forward
- Explain these concepts Ionization enthalpy Electron gain enthalpyarrow_forwardLithium oxide is an effective absorber of carbon dioxide and can be used to purify air in confined areas such as space vehicles. What volume of carbon dioxide can be absorbed by 1.00 kg of lithium oxide at 25°C and 1.00 atm? Li2O(aq) + CO2(g) → Li2CO3(s)arrow_forwardConsider the reaction: CH 4( g) + 2O 2( g) → CO 2( g) + 2H 2O( g) Which of the following statements is correct? Oxygen is the reducing agent. The reaction is not an oxidation-reduction reaction. Oxygen is oxidized. Carbon is oxidized. Carbon is the oxidizing agent.arrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning