Homework Answers
First order phase transition involves change in entropy and the volume. It involves latent heat. In this transition, the system either absorbs or releases energy.
According to the question, the volume has changed during the phase transition hence it is the first order phase transition.
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The volume change in a certain phase transition is 2.0 mL mol-1 at the transition point....
3. In a second-order phase transition, there is no difference in entropy or volume between the tw...
3. In a second-order phase transition, there is no difference in entropy or volume between the two phases and therefore the Clausius-Clapeyron equation cannot be applied. Two Ehrenfest equations can, however, be found. They follow from the the equality in entropy or volume across the phase transition, and they relate dp/dT to differences in α and C, or K between the two phases (a) By setting dSdS2, find dp/dT in terms of the differences in a and Cp between the...
2.A certain compound undergoes a solid + liquid phase transition at -25.5°C. The entropy change AS,...
2.A certain compound undergoes a solid + liquid phase transition at -25.5°C. The entropy change AS, associated with the phase transition at this temperature is 53.8 J mor' K". What is the amount of heat energy. 9, that is absorbed to give this value for AS? (8 points) 8. Use the data in the appendix to calculate the standard entropy change, ASo, for the combustion of 1 mole of methane, CHe() (note: all reactants and products are in the gaseous...
17/14 marks total oks total] A certain weak diprotic acid has K1 = 2.0 as Rai...
17/14 marks total oks total] A certain weak diprotic acid has K1 = 2.0 as Rai = 2.0 x 104 and K = 5.0 x 10-8 Calculate the pH of the solutions made using a 20.0 mL aliquot of 2.00 M diprotic acid and varying amounts of 2.0 following solutions KOH: cid and varying amounts of 2.00 M arkl Calculate the pH at the first equivalence point if this acid is titrated with a strong base. a) [1 mark] Calculai...
reaction one NaOH and HCl. 50.0 mL of 2.0 M HCl solution into 50.0 mL of...
reaction one NaOH and HCl. 50.0 mL of 2.0 M HCl solution into
50.0 mL of 2.0 M NaOH
reaction two 50 mL OF 2.0 M NaOH into 50 mL of 2.0 M NH4Cl
reaction three 50.0 mL of 2.0 M HCl into 50.0 mL NH3
pleanse answer all of the questions
Experinen DATA TABLE Reaction 1 Reaction 2 Reaction 3 34,012。21 2H0 Maximum temperature (C) Initial temperature (C) Temperature change (&T) DATA ANALYSIS 1. Calculate the amount of heat...
02) Consider a hydrostatic system represented by the thermodynamic variables volume V, pressure P and temperature...
02) Consider a hydrostatic system represented by the thermodynamic variables volume V, pressure P and temperature T. A) A hydrostatic system undergoes a phase transition from first order to temperature To = 300 K and pressure Po = 1 x 100 Pa. In this case, it is verified that the variation of the specific volume of the system Av = 2 x 10 m3/Kg and the variation of the enthalpy specific Ah = 60 KJ/Kg. Determine the variation of the...
O O QUESTION 1 1 point A decrease in price of a certain good most likely...
O O QUESTION 1 1 point A decrease in price of a certain good most likely will lead to a. no change in demand and no change in quantity demanded. b. an increase in quantity demanded but no change in the demand for that good. c. an increase in quantity demanded and an increase in the demand for that good. d. an increase in demand but no change in quantity demanded. QUESTION 2 1 poim Assume an economy with an...
Question 48 (1 point) What amount of Al2O3 is produced from the reaction of 3.0 mol...
Question 48 (1 point) What amount of Al2O3 is produced from the reaction of 3.0 mol Al with 2.0 mol Fe203? 2 Al + Fez 03 → Al2 O3 + 2 Fe 1) 1.5 mol 2) 2.0 mol 3) 3.0 mol 4) 6.0 mol
Use Delta_fus H = 6.01 kJ/mol at 0 degree C for the sold rightarrow liquid phase...
Use Delta_fus H = 6.01 kJ/mol at 0 degree C for the sold rightarrow liquid phase transition of water to calculate Delta_fus S. The Calculated answer is J/mol K (1 decimal place.) The solubility of thallium chloride (TlCl) in water is 0.29 g in 100. mL of solution at 15.6 degree C. The molar concentration of Ti^+ is M (4 dec places). The molar concentration of Cl^- is M(1 dec places). The K_sp for TlCl at this temperature is (1...
1.If 23 ml of 2.0 M NaOH was required to neutralize 10.0 ml of HCl, what...
1.If 23 ml of 2.0 M NaOH was required to neutralize 10.0 ml of HCl, what is the molarity of the HCl? 2.What volume (in L) of a 2.08 M NaOH solution is required to neutralize 0.53 mol of HCl? *Remember to report your answer using the proper significant digits. 4.A student has finished the titration of a sample of HBr of unknown concentration with 0.2 M NaOH. The student notices small drops of unreacted NaOH were left on the...
only 6...7...and 8 The Gibbs function of a thermodynamic system is defined by G H- TS. If the system is consisting of two phases 1 and 2 of a single substance and maintained at a constant temperat...
only 6...7...and 8
The Gibbs function of a thermodynamic system is defined by G H- TS. If the system is consisting of two phases 1 and 2 of a single substance and maintained at a constant temperature and pressure, the equilibriunm condition for the coexistence of these two phases is that the specific Gibbs functions are equal Consider now a first-order phase change between the phase 1 and the phase 2. At the phase boundary, the equilibrium condition for the...
3. In a second-order phase transition, there is no difference in entropy or volume between the two phases and therefore the Clausius-Clapeyron equation cannot be applied. Two Ehrenfest equations can, however, be found. They follow from the the equality in entropy or volume across the phase transition, and they relate dp/dT to differences in α and C, or K between the two phases (a) By setting dSdS2, find dp/dT in terms of the differences in a and Cp between the...
2.A certain compound undergoes a solid + liquid phase transition at -25.5°C. The entropy change AS, associated with the phase transition at this temperature is 53.8 J mor' K". What is the amount of heat energy. 9, that is absorbed to give this value for AS? (8 points) 8. Use the data in the appendix to calculate the standard entropy change, ASo, for the combustion of 1 mole of methane, CHe() (note: all reactants and products are in the gaseous...
17/14 marks total oks total] A certain weak diprotic acid has K1 = 2.0 as Rai = 2.0 x 104 and K = 5.0 x 10-8 Calculate the pH of the solutions made using a 20.0 mL aliquot of 2.00 M diprotic acid and varying amounts of 2.0 following solutions KOH: cid and varying amounts of 2.00 M arkl Calculate the pH at the first equivalence point if this acid is titrated with a strong base. a) [1 mark] Calculai...
reaction one NaOH and HCl. 50.0 mL of 2.0 M HCl solution into
50.0 mL of 2.0 M NaOH
reaction two 50 mL OF 2.0 M NaOH into 50 mL of 2.0 M NH4Cl
reaction three 50.0 mL of 2.0 M HCl into 50.0 mL NH3
pleanse answer all of the questions
Experinen DATA TABLE Reaction 1 Reaction 2 Reaction 3 34,012。21 2H0 Maximum temperature (C) Initial temperature (C) Temperature change (&T) DATA ANALYSIS 1. Calculate the amount of heat...
02) Consider a hydrostatic system represented by the thermodynamic variables volume V, pressure P and temperature T. A) A hydrostatic system undergoes a phase transition from first order to temperature To = 300 K and pressure Po = 1 x 100 Pa. In this case, it is verified that the variation of the specific volume of the system Av = 2 x 10 m3/Kg and the variation of the enthalpy specific Ah = 60 KJ/Kg. Determine the variation of the...
O O QUESTION 1 1 point A decrease in price of a certain good most likely will lead to a. no change in demand and no change in quantity demanded. b. an increase in quantity demanded but no change in the demand for that good. c. an increase in quantity demanded and an increase in the demand for that good. d. an increase in demand but no change in quantity demanded. QUESTION 2 1 poim Assume an economy with an...
Question 48 (1 point) What amount of Al2O3 is produced from the reaction of 3.0 mol Al with 2.0 mol Fe203? 2 Al + Fez 03 → Al2 O3 + 2 Fe 1) 1.5 mol 2) 2.0 mol 3) 3.0 mol 4) 6.0 mol
Use Delta_fus H = 6.01 kJ/mol at 0 degree C for the sold rightarrow liquid phase transition of water to calculate Delta_fus S. The Calculated answer is J/mol K (1 decimal place.) The solubility of thallium chloride (TlCl) in water is 0.29 g in 100. mL of solution at 15.6 degree C. The molar concentration of Ti^+ is M (4 dec places). The molar concentration of Cl^- is M(1 dec places). The K_sp for TlCl at this temperature is (1...
only 6...7...and 8
The Gibbs function of a thermodynamic system is defined by G H- TS. If the system is consisting of two phases 1 and 2 of a single substance and maintained at a constant temperature and pressure, the equilibriunm condition for the coexistence of these two phases is that the specific Gibbs functions are equal Consider now a first-order phase change between the phase 1 and the phase 2. At the phase boundary, the equilibrium condition for the...
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