Homework Answers
?Hºrxn = 4?HºH2O + 2?HºCO2 - 3?HºO2 - 2?HºCH3OH
=(4x -286) + (2x-393.5) - 0 - (2x-201)
=-1529 kJ/mol = -1529000 J /mol
?Sºrxn = 4?SºH2O + 2?SºCO2 - 3?SºO2 - 2?SºCH3OH
=(4x70) + (2x214) -(3x205) - (2x240)
= -387 J/K/mol
T = 125+273.15 = 398.15 K
?Gº = ?Hº-T?Sº = -1529000 - ( 398.15 x -387 )
= 1374916 J / mol
= 1374.9 kJ /mol
Add Answer to:
Calculate &Go at 125 C for the following reaction. Assume that ΔΗο and temperature independent. 5....
Steps please. Assuming ΔΗο and AS"are independent of temperature, calculate the temperature where K- 1.00 for...
Steps please.
Assuming ΔΗο and AS"are independent of temperature, calculate the temperature where K- 1.00 for the following reaction: 5. Fe O3 (s) 3 H2(g) 2 Fe (s) + 3 H2O (g)
lowing reaction and calculate the AHⓇ for NO. 7. Consider the following reaction and calculate the...
lowing reaction and calculate the AHⓇ for NO. 7. Consider the following reaction and calculate the 2NO(g) + Oxg) - 2NO:8) AHⓇNO.(g) - 33.85 kj/mole, AH = -113.0 kj 8. Methanol (CH,OH) is used as a fuel in high-performance engines in racecars. Compare the standard enthalpy of combustion per gram of methanol with that per gram of gasoline. Gasoline is actually a mixture of compounds, but assume for this problem that gasoline is pure liquid octane (CH). Compound CH,OH(D) CO....
Part A Calculate AHxn for the following reaction: 5 C(s) + 6 H (9) C: H12...
Part A Calculate AHxn for the following reaction: 5 C(s) + 6 H (9) C: H12 (1) Use the following reactions and given AH values. C, H12(1) + 8 O2(g) →5 CO2(g) + 6 H, 0(9), AH = -3244.8 kJ C(s) + O2(g) → CO2 (9), AH = -393.5 kJ 2 H2(g) + O2(g) + 2 H2O(9), AH = -483.5 kJ Express your answer to four significant figures.
6. Calculate each of the following: a. the number of atoms in 0.5 mol ofc b...
6. Calculate each of the following: a. the number of atoms in 0.5 mol ofc b the number of So, molecules in 1.28 mol of SO c. the moles of Fe in a sample containing 5.22 x10 - atoms of Fe 7. Calculate the molar mass for each of the following use the periodic table for the atomic mass): H2SO4 Fe2O3 Al(SO.) Mg(OH)2 (NH4)2CO3 8. How many moles of Cl2 are there in 25 g of Ciz? 9. How many...
1) For the following balanced reaction: 3H2(g) + 1 N2(g) → 2 NH3(g) a) Calculate the...
1) For the following balanced reaction: 3H2(g) + 1 N2(g) → 2 NH3(g) a) Calculate the heat of reaction (AHRXN) using AH from Table 1 b) calculate the heat of reaction (AHRXN) using Bond Energies from Table 2 c) Is the reaction endothermic or exothermic? Explain based upon your results from part a and b. 2) Calculate the energy required in Joules to heat 275.5 g of ice at -40.0°C to water at 60.0°C. 3) For blue light with an...
Which of the following expressions is the correct equilibrium-constant expression for the reaction below? 200(g) =...
Which of the following expressions is the correct equilibrium-constant expression for the reaction below? 200(g) = CO2(g) + C(s) A. [CO][C]/[CO] B. K [CO] C. [CO] / [CO2) D. [CO]/[CO] E. 2[CO] /[CO][C] In which of the following reactions would increasing pressure at constant temperature not change the concentrations of reactants and products, based on Le Châtelier's principle? ООООО A. 2N, () + 0,02N,0 () B. N.O. (g) 2NO, (g) C. N2(g) + 3H2(g)2NH3 (9) D. N2 (9) + 202...
Chapter 5 and Chapter 10 Problem solving (please practice the following questions and make sure that you understand...
Chapter 5 and Chapter 10 Problem solving (please practice the following questions and make sure that you understand the principles behind: you can find Ar from textbook or website I. A 145 g sample of copper metal at 100.0°C is placed into 250.0 g of water at 25.0°C in a calorimeter. When the system reaches thermal equilibrium, the temperature of the water in the calorimeter is 28.8°C. Assume the calorimeter is perfectly insulated. What is the specific heat capacity of...
For the following reaction, calculate how many moles of NO2 forms when 0.356 moles of the...
For the following reaction, calculate how many moles of NO2 forms when 0.356 moles of the reactant completely reacts. 2 N2O5g→4 NO2g+O2g For the following reaction, calculate how many moles of each product are formed when 0.356 moles of PbS completely react. Assume there is an excess of oxygen. 2PbSs+3O2g→2PbOs+2SO2g For the following reaction, calculate how many grams of each product are formed when 4.05 g of water is used. 2 H2O→2 H2+O2 4. Determine the theoretical yield of P2O5,...
Question 1 (1 point) Using the solubility curve, at which temperature do KCl and KCIO, have...
Question 1 (1 point) Using the solubility curve, at which temperature do KCl and KCIO, have the same solubility? Solubility Curve Grams of solute/100g H30 to .- 30. 0 10 70 80 90 100 20 30 40 50 60 Temperature (°C) O 93°C 56°C O 85°C 0750 Previous Page Next Page Page 2 of 24 Question 2 (1 point) Saline (salt) solution is 0.9% by mass which is similar to tears, blood, and other body fluids. Which of the following...
Using enthalpies of formation (Appendix C), calculate ΔH ° for the following reaction at 25°C. Also...
Using enthalpies of formation
(Appendix C), calculate ΔH ° for the following reaction at 25°C.
Also calculate ΔS ° for this reaction from standard entropies at
25°C. Use these values to calculate ΔG ° for the reaction at this
temperature. COCl2(g) + H2O(l ) h CO2(g) + 2HCl(g).
Appendix C Thermodynamic Quantities for Substances and Ions at 25°C Substance or lon AH; (kW/mol) 0 AG: (kJ/mol) 0 S° (J/mol-K) 20.87 ΔΗ, (kJ/mol) -946.3 - 33422 AG; {kj/mol) --859,3 -2793 (J/mol-K)...
Steps please.
Assuming ΔΗο and AS"are independent of temperature, calculate the temperature where K- 1.00 for the following reaction: 5. Fe O3 (s) 3 H2(g) 2 Fe (s) + 3 H2O (g)
lowing reaction and calculate the AHⓇ for NO. 7. Consider the following reaction and calculate the 2NO(g) + Oxg) - 2NO:8) AHⓇNO.(g) - 33.85 kj/mole, AH = -113.0 kj 8. Methanol (CH,OH) is used as a fuel in high-performance engines in racecars. Compare the standard enthalpy of combustion per gram of methanol with that per gram of gasoline. Gasoline is actually a mixture of compounds, but assume for this problem that gasoline is pure liquid octane (CH). Compound CH,OH(D) CO....
Part A Calculate AHxn for the following reaction: 5 C(s) + 6 H (9) C: H12 (1) Use the following reactions and given AH values. C, H12(1) + 8 O2(g) →5 CO2(g) + 6 H, 0(9), AH = -3244.8 kJ C(s) + O2(g) → CO2 (9), AH = -393.5 kJ 2 H2(g) + O2(g) + 2 H2O(9), AH = -483.5 kJ Express your answer to four significant figures.
6. Calculate each of the following: a. the number of atoms in 0.5 mol ofc b the number of So, molecules in 1.28 mol of SO c. the moles of Fe in a sample containing 5.22 x10 - atoms of Fe 7. Calculate the molar mass for each of the following use the periodic table for the atomic mass): H2SO4 Fe2O3 Al(SO.) Mg(OH)2 (NH4)2CO3 8. How many moles of Cl2 are there in 25 g of Ciz? 9. How many...
1) For the following balanced reaction: 3H2(g) + 1 N2(g) → 2 NH3(g) a) Calculate the heat of reaction (AHRXN) using AH from Table 1 b) calculate the heat of reaction (AHRXN) using Bond Energies from Table 2 c) Is the reaction endothermic or exothermic? Explain based upon your results from part a and b. 2) Calculate the energy required in Joules to heat 275.5 g of ice at -40.0°C to water at 60.0°C. 3) For blue light with an...
Which of the following expressions is the correct equilibrium-constant expression for the reaction below? 200(g) = CO2(g) + C(s) A. [CO][C]/[CO] B. K [CO] C. [CO] / [CO2) D. [CO]/[CO] E. 2[CO] /[CO][C] In which of the following reactions would increasing pressure at constant temperature not change the concentrations of reactants and products, based on Le Châtelier's principle? ООООО A. 2N, () + 0,02N,0 () B. N.O. (g) 2NO, (g) C. N2(g) + 3H2(g)2NH3 (9) D. N2 (9) + 202...
Chapter 5 and Chapter 10 Problem solving (please practice the following questions and make sure that you understand the principles behind: you can find Ar from textbook or website I. A 145 g sample of copper metal at 100.0°C is placed into 250.0 g of water at 25.0°C in a calorimeter. When the system reaches thermal equilibrium, the temperature of the water in the calorimeter is 28.8°C. Assume the calorimeter is perfectly insulated. What is the specific heat capacity of...
Question 1 (1 point) Using the solubility curve, at which temperature do KCl and KCIO, have the same solubility? Solubility Curve Grams of solute/100g H30 to .- 30. 0 10 70 80 90 100 20 30 40 50 60 Temperature (°C) O 93°C 56°C O 85°C 0750 Previous Page Next Page Page 2 of 24 Question 2 (1 point) Saline (salt) solution is 0.9% by mass which is similar to tears, blood, and other body fluids. Which of the following...
Using enthalpies of formation
(Appendix C), calculate ΔH ° for the following reaction at 25°C.
Also calculate ΔS ° for this reaction from standard entropies at
25°C. Use these values to calculate ΔG ° for the reaction at this
temperature. COCl2(g) + H2O(l ) h CO2(g) + 2HCl(g).
Appendix C Thermodynamic Quantities for Substances and Ions at 25°C Substance or lon AH; (kW/mol) 0 AG: (kJ/mol) 0 S° (J/mol-K) 20.87 ΔΗ, (kJ/mol) -946.3 - 33422 AG; {kj/mol) --859,3 -2793 (J/mol-K)...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago