Concept explainers
Interpretation:
The given process is exothermic or endothermic has to be explained.
Concept introduction:
Lattice energy:
The amount of energy that is necessary for the conversion of one mole of ionic solid to its constituent ions in gaseous phase is called Lattice energy.
Hess’s law:
The enthalpy change for given set of reactants to the given set of products is the same, whether the process takes place in single or sequence of steps. This is called as Hess’s law.
Enthalpy is generally calculated from the standard enthalpy of formation.
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Chapter 8 Solutions
General Chemistry - Standalone book (MindTap Course List)
- Of the five elements Sn, Si, Sb, O, Te, which has the most endothermic reaction? (E represents an atom.) What name is given to the energy for the reaction? E(g)E+(g)+earrow_forwardCompare the electron affinity of fluorine to the ionization energy of sodium. Does the process of an electron being pulled from the sodium atom to the fluorine atom have a negative or a positive E? Why is NaF a stable compound? Does the overall formation of NaF have a negative or a positive E? How can this be?arrow_forwardUsing data from Chapter 2, calculate the change in energy expected for each of the following processes. a. Na(g)+Cl(g)Na+(g)+Cl(g) b. Mg(g)+F(g)Mg+(g)+F(g) c. Mg+(g)+F(g)Mg2+(g)+F(g). d. Mg(g)+2F(g)Mg2+(g)+2F(g)arrow_forward
- Consider the following data for phosphorus: 30.974 mol atomic mass electronegativity 2.19 kJ 72. mol electron affinity kJ 1011.8 mol ionization energy kJ 0.64 mol heat of fusion You may find additional useful data in the ALEKS Data tab. Does the following reaction absorb or release energy? release absorb (1) P (g) - P(g) + e Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): OkJ/mol Does the following reaction absorb or release energy? release absorb (2) P(g) - P (g) + e Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): 1011.8 kJ/molarrow_forwardg 6.941 mol atomic mass electronegativity 0.98 kJ 59.6 mol electron affinity kJ 520.2 mol ionization energy kJ 3.0 mol heat of fusion Does the following reaction absorb or release energy? O release O absorb (1) Li (g) + e Li(g) O Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? O yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): I kJ/mol Does the following reaction absorb or release energy? O release O absorb (2) Li(g) → Li (g) + e O Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? O yes O no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): I kJ/molarrow_forwardConsider the following data for osmium: atomic mass electronegativity electron affinity ionization energy heat of fusion 190.23 106.1 2.20 840. 31. g mol (1) Os (g) → Os (g) + e kJ mol kJ mol You may find additional useful data in the ALEKS Data tab. kJ mol Does the following reaction absorb or release energy? + (2) Os (g) + e → Os (g) Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): Does the following reaction absorb or release energy? Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): release absorb Can't be decided with the data given. yes no kJ/mol release absorb Can't be decided with the data given. yes no kJ/molarrow_forward
- Consider the following data for potassium: atomic mass electronegativity electron affinity ionization energy heat of fusion 39.098 48.4 0.82 418.8 (2) K (g) + e 2.33 g mol kJ mol kJ mol You may find additional useful data in the ALEKS Data tab. → K (g) kJ mol Does the following reaction absorb or release energy? (1) K (g) → K (g) + e Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): Does the following reaction absorb or release energy? Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): O release O absorb O Can't be decided with the data given. O yes Ono kJ/mol O release O absorb O Can't be decided with the data given. O yes O no kJ/mol X Sarrow_forwardUse the following image to determine which statement is true: Calcium is the most reactive because it has the most energy levels (shells.) Carbon is the most reactive because it can take or give 4 electrons. Helium is the most reactive because it is the simplest and can therefor react easier. Lithium is the most reactive because it has a valence of 1.arrow_forwardA photon of light from a laser has an energy of 2.287 × 10−19 J. What is the total energy in two moles of these photos?arrow_forward
- Consider the following data for manganese: 54.938 mol atomic mass electronegativity 1.55 kJ electron affinity mol kJ 717.3 ionization energy mol kJ 13.2 mol heat of fusion You may find additional useful data in the ALEKS Data tab. Does the following reaction absorb or release energy? release absorb (1) Mn(g) + e Mn (g) Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): kJ/mol Does the following reaction absorb or release energy? release absorb (2) Mn(g) → Mn (g) + e Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): |KJ/molarrow_forwardA neutral atom has the following electron configuration: [He] 25 2p What is the chemical symbol for the atom? OParrow_forwardConsider the following data for nickel: atomic mass electronegativity electron affinity ionization energy heat of fusion 58.693 1.91 112. 737.1 g mol 17.2 kJ mol kJ mol kJ mol Does the following reaction absorb or release energy? (1) Ni (g) → Ni(g) + e Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): Does the following reaction absorb or release energy? (2) Ni' (g) + e Ni (g) - Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): Orelease O absorb O Can't be decided with the data given. O yes O no kJ/mol O release O absorb O Can't be decided with the data given. O yes O no kJ/molarrow_forward
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