CHEM134 COO3 Lesson 6 Assessment Graded A+|Accurate|Verified 2026

CHEM134 COO3 Lesson 6 Assessment Graded A+


Part 1 of 1 - 134 16.1 Thermodynamics Quiz 06 85.0/ 100.0 Points


Question 1 of 20
5.0/ 5.0 Points
The equilibrium constant for the reaction AgBr(s) ⇌ Ag+(aq) + Br– (aq) is the
solubility product constant, Ksp = 7.7 × 10–13 at 25°C. Calculate ΔG for the reaction when
[Ag+] = 1.0 × 10–2 M and [Br–] = 1.0 × 10–3 M. Is the reaction spontaneous or
nonspontaneous at these concentrations?


A. ΔG = 69.1 kJ/mol, nonspontaneous


B. ΔG = 97.5 kJ/mol, spontaneous


C. ΔG = 40.6 kJ/mol, nonspontaneous


D. ΔG = -97.5 kJ/mol, nonspontaneous


E. ΔG = -69.1 kJ/mol, spontaneous




Feedback: See Chapter 16

Question 2 of 20
5.0/ 5.0 Points
The enthalpy of vaporization of isopropanol is 44.00 kJ/mol at its boiling point

, (82.3°C). Calculate the value of ΔS when 1.00 mole of isopropanol is vaporized at 82.3°C and
1.00 atm.



A. -1.24 x 102 J/K mol


B. 1.24 x 102 J/K mol


C. -5.35 x 102 J/K mol


D. 0 J/K mol


E. 5.35 x 102 J/K mol




Feedback: See Chapter 16

Question 3 of 20
5.0/ 5.0 Points
Arrange the following substances in the order of increasing entropy at 25°C:

HF(g), NaF(s), SiF4(g), SiH4(g), Al(s)



A. Al(s) < HF(g) < NaF(s) < SiF4(g) < SiH4(g)


B. HF(g) < Al(s) < NaF(s) < SiF4(g) < SiH4(g)


C. Al(s) < NaF(s) < HF(g) < SiH4(g) < SiF4(g)


D. NaF(s) < Al(s) < HF(g) < SiF4(g) < SiH4(g)


E. SiF4(g) < SiH4(g) < NaF(s) < HF(g) < Al(s)