Question

In: Chemistry

Select the processes that are expected to be exothermic: a. Li+(g) + F-(g) --> LiF (s)...

Select the processes that are expected to be exothermic:

a.

Li+(g) + F-(g) --> LiF (s)

b.

Ca2+(g) + 2e- --> Ca (g)

c.

CaBr2(s) --> Ca (s) + Br2(g)

d.

S (g) +2e- --> S2-(g)

e.

Fe (l) --> Fe (s)

f.

Fe (s) --> Fe (g)

Solutions

Expert Solution


Related Solutions

For which of the following reactions is ΔH∘rxn equal to ΔH∘f of the product(s)? a) Li(s)+12F2(l)→LiF(s)...
For which of the following reactions is ΔH∘rxn equal to ΔH∘f of the product(s)? a) Li(s)+12F2(l)→LiF(s) b) H2(g)+12O2(g)→H2O(g) c)2H2(g)+O2(g)→2H2O(g) d) 2Li(s)+F2(g)→2LiF(s) e) Li(s)+12F2(g)→LiF(s) f) H2O2(g)→12O2(g)+H2O(g)
Choose the reactions (or processes) that are expected to have a negative value for ∆S°. (Select...
Choose the reactions (or processes) that are expected to have a negative value for ∆S°. (Select all that apply.) 4Al(s)ᅠ+ᅠ3O2(g) → 2Al2O3(s) NaCl(s) → Na+(aq) + Cl-(aq) CH3OH(g) + 3/2O2(g) → CO2(g) + 2H2O(l) SiO2(s) + 3C(s) → SiC(s) + 2CO(g) I2(g) → I2(s)
Choose the reactions (or processes) that are expected to have a positive value for ∆S°. (Select...
Choose the reactions (or processes) that are expected to have a positive value for ∆S°. (Select all that apply.) H2O(l) → H2O(s) 2N2O5(g) → 4NO2(g) + O2(g) Fe(s) + 5CO(g) → Fe(CO)5(l) 4NH3(g) + 7O2(g) → 4NO2(g) + 6H2O(g) 2NH3(g) → N2(g) + 3H2(g)
Consider the following equilibrium for the exothermic reaction: 2NaHSO3(s) <=> Na2SO3(s) +H2O(g) +SO2(g) How will the...
Consider the following equilibrium for the exothermic reaction: 2NaHSO3(s) <=> Na2SO3(s) +H2O(g) +SO2(g) How will the equilibrium shift when each of the following changes are made separately? Answer with shift towards products, shift towards reactants or no shift. Provide a reason for your choice. a.) Adding H2O to the reaction vessel: b.) Adding Helium to the reaction vessel: c.) Removing Na2SO3: d.) Increasing the volume of the reaction vessel: e.) Increasing the temperature of the reaction vessel:
Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ Part A Is this reaction exothermic or endothermic? exothermic endothermic SubmitMy...
Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ Part A Is this reaction exothermic or endothermic? exothermic endothermic SubmitMy AnswersGive Up Correct Part B Calculate the amount of heat transferred when 3.56 g of Mg(s) reacts at constant pressure. ΔH =   kJ   SubmitMy AnswersGive Up Part C How many grams of MgO are produced during an enthalpy change of -231 kJ ? m =   g   SubmitMy AnswersGive Up Part D How many kilojoules of heat are absorbed when 40.7 g of MgO(s) is...
Which of the following processes is/are exothermic? may select multiple answers. 1. breaking of a Cl-Cl...
Which of the following processes is/are exothermic? may select multiple answers. 1. breaking of a Cl-Cl bond 2. electron affinity of oxygen 3. combustion of methane 4. formation of ionic compounds from its ions 5.ionization of a lithium atom
1. Let g(s) = √ s. Find a simple function f so that f(g(s)) = 0....
1. Let g(s) = √ s. Find a simple function f so that f(g(s)) = 0. Hint: see Methods of computing square roots on Wikipedia. Use Newton’s method to estimate √ 2. Start with 3 different (and interesting) initial values of your choice and report the number of iterations it takes to obtain an accuracy of at least 4 digits. In python.
The following reaction is exothermic:              2SO2(g)    +    ...
The following reaction is exothermic:              2SO2(g)    +     O2(g)     <=>      2SO3(g) a.   What is the effect of increasing the temperature of the reaction mixture? b.  What effect would an increase in pressure have on the reaction mixture? c.  what effect would it have when SO3 is removed from the reaction mixture?
The formation of tetrafluoroethylene from its elements is highly exothermic: 2F2(g) + 2C(s) ↔ F2C=CF2(g) (a)...
The formation of tetrafluoroethylene from its elements is highly exothermic: 2F2(g) + 2C(s) ↔ F2C=CF2(g) (a) If a mixture of F2, graphite, and C2F4 is at equilibrium in a closed container, will the reaction go to the right or to the left in F2 is added? (b) Rare bacteria from the planet Teflon eats C2F4 and make Teflon for their cell walls. Will the reaction go to the right or to the left if these bacteria are added? (c) Will...
Which of the following processes is endothermic, given the following: S(s) + O2(g) → SO2(g)   ΔH...
Which of the following processes is endothermic, given the following: S(s) + O2(g) → SO2(g)   ΔH = –299 kJ/mol                                 S(s) + 3/2 O2(g) → SO3(g)   ΔH = –395 kJ/mol                 A) 2 S(s) + 2 O2(g) → 2 SO2(g)                 B) ½ S(s) + ½ O2(g) →½ SO2(g)                 C) 2 S(s) + 5/2 O2(g) → SO2(g)   + SO3(g)                 D) SO3(g) → S(s) + 3/2 O2(g)
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT