Homework Answers
Phase transition of solid
sulfur can be calculated by Clapeyron equation considering the
first-order phase transition.
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Consider the phase transition between two phases of sulfur S(s, rhombic) S (s, monoclinic) IF AG...
8. Consider the phase transition between two phases of sulfur S(s, rhombic) →S (s, monoclinic) If...
8. Consider the phase transition between two phases of sulfur S(s, rhombic) →S (s, monoclinic) If AG for this transition is +0.10 kl/mol and the densities of the rhombic and monoclinic phases are, respectively, 2.07 g/cm and 1.92 g/cm', at what pressure does the phase transformation from rhombic to monoclinic become spontaneous?
help please 8. Consider the phase transition between two phases of sulfur S(s, rhombic) —S (s,...
help please
8. Consider the phase transition between two phases of sulfur S(s, rhombic) —S (s, monoclinic) If AG for this transition is +0.10 kJ/mol and the densities of the rhombic and monoclinic phases are, respectively, 2.07 g/cm and 1.92 g/cm, at what pressure does the phase transformation from rhombic to monoclinic become spontaneous?
Sulfur exhibits two solid phases, rhombie and monoclinic. Use the Phase Diagram er the following question....
Sulfur exhibits two solid phases, rhombie and monoclinic. Use the Phase Diagram er the following question. (The phase diagram is not to scale.) 151C. 1420 m Monline 95 1910 lam I am Rhobic 115.15C 95C 51 x 10am How many triple points are in the phase diagram? b. What phases are in equilibrium at the triple point at 9531°C? (Select all that apply.) rhombic liquid monoclinic c. What phases are in equilibrium at the triple point at 115.18°C? Show in...
10. Elemental sulfur exists in two crystalline forms, rhombic and monoclinic. From the following data =...
10. Elemental sulfur exists in two crystalline forms, rhombic and monoclinic. From the following data = S(monoclinic) 5° (J/K mol) 31.880 S (rhombic) AHP (kJ/mol) S (rhombic) S(monoclinic) 0.30 a. Calculate the enthalpy change 32.546 b. Calculate the entropy change C. Calculate the Gibbs free energy at 25°C.
Sulfur has two solid forms - a (or rhombic) and b (or monoclinic). The standard enthalpies...
Sulfur has two solid forms - a (or rhombic) and b (or monoclinic). The standard enthalpies of combustion, in which the product is s02. are -296.53 kJ/mol for S(s,a) and 296.86 kJ/mol for S(s,b) a 298 K. Find the standard reaction enthalpy for the process S(s,a) -> Sts,b) at 298 K.
9.Enter your answer in the provided box. S(rhombic) + O2(g) → SO2(g) ΔHo rxn= −296.06 kJ/mol...
9.Enter your answer in the provided box. S(rhombic) + O2(g) → SO2(g) ΔHo rxn= −296.06 kJ/mol S(monoclinic) + O2(g) → SO2(g) ΔHo rxn= −296.36 kJ/mol calculate the enthalpy change for the transformation S(rhombic) → S(monoclinic) (Monoclinic and rhombic are different allotropic forms of elemental sulfur.) _______kJ/mol 10. Enter your answer in the provided box Use the following data to calculate ΔHo/f for CS2(l): C(graphite) + O2(g) → CO2(g) ΔHo rxn= −393.5 kJ/mol S(rhombic) + O2(g) → SO2(g) ΔHo rxn=...
The solid/liquid phase transition of water near 1 atm external pressure is an important feature of...
The solid/liquid phase transition of water near 1 atm external pressure is an important feature of our daily lives. Some relevant data concerning the transition include the density of liquid water at 273.15 K (0.999 g cm-3), the density of ice at 273.15 K (0.917 g cm-3), and the enthalpy of fusion of water at 273.15 K (6.008 kJ mol-1). (a) On a phase diagram, this transition appears as a line. Calculate the slope of this transition line near the...
2. Consider the following phase transition: C (graphite) - C(diamond). (a) (6 points) The temperature dependence...
2. Consider the following phase transition: C (graphite) - C(diamond). (a) (6 points) The temperature dependence of reaction Gibbs energy. AGA, for the above reaction is given by AG (mol) = 1895 +3.3637 at 1 atm. Calculate AH, and AS, at 298.15K and 1 atm. (b) [9 points) The density of diamond is 3.52 g/ml and that of graphite is 2.25 g/ml. The formation free energy (AG) of diamond is 2.90 kJ/mol and that of graphite is zero at 298.15...
10. Consider the reaction between NF3(g) and O2(g) which forms N2Os(s) and F(b). The balanced chemical...
10. Consider the reaction between NF3(g) and O2(g) which forms N2Os(s) and F(b). The balanced chemical equation is below: (6 marks total) 4 NF3(g) + 5 O2(g) = 2 N2O3(e) + 6 F2(e) A gas mixture was made containing all four gases, where PN,0 = 0.60 bar, Pne - 0.10 bar, Pg 0.10 bar and Po, -0.20 bar. Some other potentially useful information: A/G (NF3(8)= -90.6 kJ/mol and A/G (N2Os(e)) = 117.1 kl/mol a) Use the information above to determine...
(a) Consider the boundary between two distinct phases in a pressure-temperature phase diagram. Derive the Clausius-Clap...
(a) Consider the boundary between two distinct phases in a pressure-temperature phase diagram. Derive the Clausius-Clapeyron equation for the slope of the phase boundary, dP L TAV Define all the symbols in the equation (b) In a lecture a video was shown of ice regelation, where a wire passed through a block of ice. Use the Clausius-Clapeyron equation to show that regelation is related to the fact that ice floats on water.
(a) Consider the boundary between two distinct phases...
8. Consider the phase transition between two phases of sulfur S(s, rhombic) →S (s, monoclinic) If AG for this transition is +0.10 kl/mol and the densities of the rhombic and monoclinic phases are, respectively, 2.07 g/cm and 1.92 g/cm', at what pressure does the phase transformation from rhombic to monoclinic become spontaneous?
help please
8. Consider the phase transition between two phases of sulfur S(s, rhombic) —S (s, monoclinic) If AG for this transition is +0.10 kJ/mol and the densities of the rhombic and monoclinic phases are, respectively, 2.07 g/cm and 1.92 g/cm, at what pressure does the phase transformation from rhombic to monoclinic become spontaneous?
Sulfur exhibits two solid phases, rhombie and monoclinic. Use the Phase Diagram er the following question. (The phase diagram is not to scale.) 151C. 1420 m Monline 95 1910 lam I am Rhobic 115.15C 95C 51 x 10am How many triple points are in the phase diagram? b. What phases are in equilibrium at the triple point at 9531°C? (Select all that apply.) rhombic liquid monoclinic c. What phases are in equilibrium at the triple point at 115.18°C? Show in...
10. Elemental sulfur exists in two crystalline forms, rhombic and monoclinic. From the following data = S(monoclinic) 5° (J/K mol) 31.880 S (rhombic) AHP (kJ/mol) S (rhombic) S(monoclinic) 0.30 a. Calculate the enthalpy change 32.546 b. Calculate the entropy change C. Calculate the Gibbs free energy at 25°C.
Sulfur has two solid forms - a (or rhombic) and b (or monoclinic). The standard enthalpies of combustion, in which the product is s02. are -296.53 kJ/mol for S(s,a) and 296.86 kJ/mol for S(s,b) a 298 K. Find the standard reaction enthalpy for the process S(s,a) -> Sts,b) at 298 K.
2. Consider the following phase transition: C (graphite) - C(diamond). (a) (6 points) The temperature dependence of reaction Gibbs energy. AGA, for the above reaction is given by AG (mol) = 1895 +3.3637 at 1 atm. Calculate AH, and AS, at 298.15K and 1 atm. (b) [9 points) The density of diamond is 3.52 g/ml and that of graphite is 2.25 g/ml. The formation free energy (AG) of diamond is 2.90 kJ/mol and that of graphite is zero at 298.15...
10. Consider the reaction between NF3(g) and O2(g) which forms N2Os(s) and F(b). The balanced chemical equation is below: (6 marks total) 4 NF3(g) + 5 O2(g) = 2 N2O3(e) + 6 F2(e) A gas mixture was made containing all four gases, where PN,0 = 0.60 bar, Pne - 0.10 bar, Pg 0.10 bar and Po, -0.20 bar. Some other potentially useful information: A/G (NF3(8)= -90.6 kJ/mol and A/G (N2Os(e)) = 117.1 kl/mol a) Use the information above to determine...
(a) Consider the boundary between two distinct phases in a pressure-temperature phase diagram. Derive the Clausius-Clapeyron equation for the slope of the phase boundary, dP L TAV Define all the symbols in the equation (b) In a lecture a video was shown of ice regelation, where a wire passed through a block of ice. Use the Clausius-Clapeyron equation to show that regelation is related to the fact that ice floats on water.
(a) Consider the boundary between two distinct phases...
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