Homework Answers
Enthalpy change for a reverse reaction is positive if the enthalpy change for that particular reaction is negative and vice-versa.
If a reaction is multiply by some number or divided by some number,then enthalpy change also multiply or divided by that number.
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10011 out of 13 Part 2 (0.7 point) See Hint mbustion of 1 mole of propane. Assume that solid carbon Combine the fol...
13 Question (3 points) The enthalpy change for a chemical reaction is the sum of the...
13 Question (3 points) The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking bonds and the energy released during bond formation. One way to determine the overall energy change for a chemical reaction is to apply Hess's law to add together a group of reactions which can be arranged such that the chemical equations, when combined, give the overall equation we are trying to characterize Part 1 (1 point) Il See Periodic Table...
The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking...
The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking bonds and the energy released during bond formation. One way to determine the overall energy change for a chemical reaction is to apply Hess's law to add together a group of reactions which can be arranged such that the chemical equations, when combined, give the overall equation we are trying to characterize 3rd attempt See Hint Ad See Periodic Table Part 1 (1 point)...
5. Calculate the enthalpy of formation of carbon dioxide in the following reaction: C(s) + O2(g)...
5. Calculate the enthalpy of formation of carbon dioxide in the following reaction: C(s) + O2(g) - CO. (g) 213 Use the following equations: 2) H.O (0) -- H() .O() AH: 285.8 kJ/mol b) CH. (g) -- 2C). 3H2(g) AH: +84.7 kJ/mol c) 200,(e) +3H.0 (6-- C.H. (B). (7/2)0,() AH - 1560.7 kJ/mol
6-8 Using the table below, calculate the AH rxn for each of the following equations. Selected...
6-8 Using the table below, calculate the AH rxn for each of the following equations. Selected Standard Enthalpies of Formation at 25° C (298K) AH (kJ/mol) (kJ/mol Formula AH 0 Silver 92.3 Agis) AgC(3) 0 1270 218 Formula AH (kJ/mol Formula Calcium Ca(s) CI (9) Ca(s) 635.1 HC (G) Caco (s)-1206.9 Hydrogen Hig) Carbon C(graphite) 0 H (9) C(diamond) 1.9 Nitrogen COL) -1105 N19) CO(g) -393.5 NH,(g CH_(9) 74.9 NO(9) CH,OHI) -238.6 Oxygen HỎNG) 133 O.) CS.) 87.9 O (9)...
General Chemistry I! Workshop 8: Gibb's Free Energy Part I. (2 pts) Write down and balance...
General Chemistry I! Workshop 8: Gibb's Free Energy Part I. (2 pts) Write down and balance chemical equations for (a) the reaction for burning 1 mole of hydrogen gas in oxygen to produce liquid water and (b) the reaction for burning 1 mole of liquid propane (CsHs) in oxygen to produce carbon dioxide gas and liquid water: (a) (b) Now look at the two reactions and discuss with yo group the following questions: (a) Which of these two methods of...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of water at 11.0 °C. When 250 g of X (a substance with a molar mass of 60.0 g/mol) is added, it dissolves via the reaction X(s) + H2O(1) X(aq) and the temperature of the solution increases to 30.0 °C. Calculate the enthalpy change, AH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of water at 11.0 °C. When 250 g of X (a substance with a molar mass of 60.0 g/mol) is added, it dissolves via the reaction X(s) + H2O(1) X(aq) and the temperature of the solution increases to 30.0 °C. Calculate the enthalpy change, AH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that...
General Chemistry II Part II. Fuel efficiency (6 pts) Fuel efficiency is the efficiency of the...
General Chemistry II Part II. Fuel efficiency (6 pts) Fuel efficiency is the efficiency of the conversion of chemical energy contained in a fuel into work. Let's see which one of these fuels (hydrogen gas or liquid propane) will allow us to do more electrical work. Use the thermodynamic data provided to answer the following questions: 1. First determine the amount of heat released in direct combustion of (a) 1 mole of hydrogen gas; (b) 1 mole of liquid propane...
I hope the answer is clear and correct thanks Question 1 (1 point) What is the...
I hope the answer is clear and correct thanks
Question 1 (1 point) What is the change in enthalpy (in kJ mol'?) for the following reaction F2(g) + Cabr,(s) CaF() + Brz(1) O 1) -112 kJmo12 O2) 504 kJmo11 03) -504 kJmol 1 04) 537 kJmo11 O 5) -537 kJmol'i Question 2 (1 point) What is true about the following reaction at 25°C? F,(g) + 2HCl(g) 2 2017(g) + H (9) Ahrº=76 kJ mol'i Asr°=-10.13 J mol'i Ki Agrº=79 kJ...
(7 pts.) Calculate the heat absorbed when 4.20 g of H2 are produced according to the...
(7 pts.) Calculate the heat absorbed when 4.20 g of H2 are produced according to the following equation. CH3OH (g) → CO(g) + 2 H2(g) AH = 90.2 kJ (7 pts.) When one adds 1.475 kJ of heat energy to a sample of gold, the temperature goes from 12.5 °C to 84.6 °C. Calculate the mass of the sample of gold. Gold has a specific heat capacity of 0.129 J/g.°C. (6 pts.) 10. Write the thermochemical equation for the standard...
13 Question (3 points) The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking bonds and the energy released during bond formation. One way to determine the overall energy change for a chemical reaction is to apply Hess's law to add together a group of reactions which can be arranged such that the chemical equations, when combined, give the overall equation we are trying to characterize Part 1 (1 point) Il See Periodic Table...
The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking bonds and the energy released during bond formation. One way to determine the overall energy change for a chemical reaction is to apply Hess's law to add together a group of reactions which can be arranged such that the chemical equations, when combined, give the overall equation we are trying to characterize 3rd attempt See Hint Ad See Periodic Table Part 1 (1 point)...
5. Calculate the enthalpy of formation of carbon dioxide in the following reaction: C(s) + O2(g) - CO. (g) 213 Use the following equations: 2) H.O (0) -- H() .O() AH: 285.8 kJ/mol b) CH. (g) -- 2C). 3H2(g) AH: +84.7 kJ/mol c) 200,(e) +3H.0 (6-- C.H. (B). (7/2)0,() AH - 1560.7 kJ/mol
6-8 Using the table below, calculate the AH rxn for each of the following equations. Selected Standard Enthalpies of Formation at 25° C (298K) AH (kJ/mol) (kJ/mol Formula AH 0 Silver 92.3 Agis) AgC(3) 0 1270 218 Formula AH (kJ/mol Formula Calcium Ca(s) CI (9) Ca(s) 635.1 HC (G) Caco (s)-1206.9 Hydrogen Hig) Carbon C(graphite) 0 H (9) C(diamond) 1.9 Nitrogen COL) -1105 N19) CO(g) -393.5 NH,(g CH_(9) 74.9 NO(9) CH,OHI) -238.6 Oxygen HỎNG) 133 O.) CS.) 87.9 O (9)...
General Chemistry I! Workshop 8: Gibb's Free Energy Part I. (2 pts) Write down and balance chemical equations for (a) the reaction for burning 1 mole of hydrogen gas in oxygen to produce liquid water and (b) the reaction for burning 1 mole of liquid propane (CsHs) in oxygen to produce carbon dioxide gas and liquid water: (a) (b) Now look at the two reactions and discuss with yo group the following questions: (a) Which of these two methods of...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of water at 11.0 °C. When 250 g of X (a substance with a molar mass of 60.0 g/mol) is added, it dissolves via the reaction X(s) + H2O(1) X(aq) and the temperature of the solution increases to 30.0 °C. Calculate the enthalpy change, AH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of water at 11.0 °C. When 250 g of X (a substance with a molar mass of 60.0 g/mol) is added, it dissolves via the reaction X(s) + H2O(1) X(aq) and the temperature of the solution increases to 30.0 °C. Calculate the enthalpy change, AH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that...
General Chemistry II Part II. Fuel efficiency (6 pts) Fuel efficiency is the efficiency of the conversion of chemical energy contained in a fuel into work. Let's see which one of these fuels (hydrogen gas or liquid propane) will allow us to do more electrical work. Use the thermodynamic data provided to answer the following questions: 1. First determine the amount of heat released in direct combustion of (a) 1 mole of hydrogen gas; (b) 1 mole of liquid propane...
I hope the answer is clear and correct thanks
Question 1 (1 point) What is the change in enthalpy (in kJ mol'?) for the following reaction F2(g) + Cabr,(s) CaF() + Brz(1) O 1) -112 kJmo12 O2) 504 kJmo11 03) -504 kJmol 1 04) 537 kJmo11 O 5) -537 kJmol'i Question 2 (1 point) What is true about the following reaction at 25°C? F,(g) + 2HCl(g) 2 2017(g) + H (9) Ahrº=76 kJ mol'i Asr°=-10.13 J mol'i Ki Agrº=79 kJ...
(7 pts.) Calculate the heat absorbed when 4.20 g of H2 are produced according to the following equation. CH3OH (g) → CO(g) + 2 H2(g) AH = 90.2 kJ (7 pts.) When one adds 1.475 kJ of heat energy to a sample of gold, the temperature goes from 12.5 °C to 84.6 °C. Calculate the mass of the sample of gold. Gold has a specific heat capacity of 0.129 J/g.°C. (6 pts.) 10. Write the thermochemical equation for the standard...
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