Which of these reactions demonstrate the enthalpy of atom combination? N(g)+3H(g)⟶NH3(g)N(g)+3H(g)⟶NH3(g) C(graphite)+2O2(g)⟶CO2(g)C(graphite)+2O2(g)⟶CO2(g) NO2(g)⟶N(g)+2O(g)NO2(g)⟶N(g)+2O(g) 2H2(g)+O2(g)⟶2H2O(g)2H2(g)+O2(g)⟶2H2O(g) C(g)+O(g)⟶CO(g)
Which of these reactions demonstrate the enthalpy of atom combination?
N(g)+3H(g)⟶NH3(g)N(g)+3H(g)⟶NH3(g)
C(graphite)+2O2(g)⟶CO2(g)C(graphite)+2O2(g)⟶CO2(g)
NO2(g)⟶N(g)+2O(g)NO2(g)⟶N(g)+2O(g)
2H2(g)+O2(g)⟶2H2O(g)2H2(g)+O2(g)⟶2H2O(g)
C(g)+O(g)⟶CO(g)
Homework Answers
Solution:
Enthalpy of atom combination is defined as the change in enthalpy when one mole of compound is formed by the combination of its constituent atoms in gaseous state.
Hence, two reactions are showing enthalpy of atom combination,
N(g) + 3H(g) = NH3(g)
C(g) + O(g) = CO (g)
Add Answer to:
Which of these reactions demonstrate the enthalpy of atom
combination?
N(g)+3H(g)⟶NH3(g)N(g)+3H(g)⟶NH3(g)
C(graphite)+2O2(g)⟶CO2(g)C(graphite)+2O2(g)⟶CO2(g)
NO2(g)⟶N(g)+2O(g)NO2(g)⟶N(g)+2O(g)
2H2(g)+O2(g)⟶2H2O(g)2H2(g)+O2(g)⟶2H2O(g)
C(g)+O(g)⟶CO(g)
Please explain Data: C(graphite) + O2(g) => CO2(g) AH = -393.5 kJ H2(g) + 1/2O2(g) =>...
Please explain
Data: C(graphite) + O2(g) => CO2(g) AH = -393.5 kJ H2(g) + 1/2O2(g) => H2O(1) AH = -285.8 kJ CH3OH(1) + 3/202(9) A CO2(g) + 2H20(1) AH = -726.4 kJ Using the data above, calculate the enthalpy change for the reaction below. Reaction: C(graphite) + 2H2(g) + 1/2O2(g) => CH3OH(1) A. +238.7 kJ B.-238.7 kJ C. +548.3 kJ D.-548.3 kJ E. +904.5 kJ
From the following heats of combustion, CH3OH(l) + 3/2O2(g) → CO2(g) + 2H2O(l) ΔHorxn = –726.4...
From the following heats of combustion, CH3OH(l) + 3/2O2(g) → CO2(g) + 2H2O(l) ΔHorxn = –726.4 kJ/mol C(graphite) + O2(g) → CO2(g) ΔHorxn = –393.5 kJ/mol H2(g) + ½O2(g) → H2O(l) ΔHorxn = –285.8 kJ/mol Calculate the enthalpy of formation of methanol (CH3OH) from its elements. C(graphite) + 2H2(g) + ½O2(g) → CH3OH(l) Methanol (CH3OH) is an organic solvent and is also used as a fuel in some automobile engines. From...
please help Consider following chemical reactions: 1) CH.(g) + 2O2(g) → CO2(g) + 2H2O(1) 2) C(s) + O2(g) → CO2(g) 3)...
please help
Consider following chemical reactions: 1) CH.(g) + 2O2(g) → CO2(g) + 2H2O(1) 2) C(s) + O2(g) → CO2(g) 3) 2C(s) + O2(g) - 200(g) 4) 3C(s) + 2H2O) CH4(g) + 2COg) H2O(l) indicates that H20 is in liquid state. If the Enthalpy of reaction for reaction 1, 2, and 3 are -890.4kj, -393.5kj and - 221.Okj respectively; try to figure out the Enthalpy of reaction for reaction 4. Please show your work.
Use the example shown to calculate the reaction enthalpy, delta H, for the following reaction: CH4(g)+2O2(g)->CO2(g)2H2O(l)....
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4. You are given the following information. C (graphite) + O2(g) — CO2 (g) CO(g) +...
4. You are given the following information. C (graphite) + O2(g) — CO2 (g) CO(g) + 02 (g) - CO2 (g) Determine the standard enthalpy change for the reaction: C (graphite) + / O2 (g) - CO (g) AH° = - 393.5 kJ AH° = - 283.0 kJ AHrxn = ?
Consider following chemical reactions: 1) CH2(g) + 2O2(g) → CO2(g) + 2H20(1) 2) C(s) + O2(g)...
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Determine the enthalpy change for C(graphite) + O2(g) → CO2(g); AH= ? using the following three...
Determine the enthalpy change for C(graphite) + O2(g) → CO2(g); AH= ? using the following three thermochemical equations, which will be referred to as reactions (A), (B), and (C). (A) Sro(s) + CO2(g) → SCO3(s);AH = -234 kJ (B) 2Sro(s) → 25r(s) + O2(g); AH= 1184 kJ (C) 2SrCO3(s) — 25r(s) + 2C(graphite) + 302(g); AH= 2440 kJ The value for AH = List what action you performed on each equation to achieve your goal. Equation (A) was Equation (B)...
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Which of the reactions are exothermic? 2Mg(s)+O2(g)⟶2MgO(s)+heat2Mg(s)+O2(g)⟶2MgO(s)+heat NH3(g)+HCl(g)⟶NH4Cl(s)+heatNH3(g)+HCl(g)⟶NH4Cl(s)+heat AgCl(s)+heat⟶Ag+(aq)+Cl−(aq)AgCl(s)+heat⟶Ag+(aq)+Cl−(aq) 2Fe2O3(s)+3C(s)+heat⟶4Fe(s)+3CO2(g)2Fe2O3(s)+3C(s)+h
Which of the reactions are exothermic? 2Mg(s)+O2(g)⟶2MgO(s)+heat2Mg(s)+O2(g)⟶2MgO(s)+heat NH3(g)+HCl(g)⟶NH4Cl(s)+heatNH3(g)+HCl(g)⟶NH4Cl(s)+heat AgCl(s)+heat⟶Ag+(aq)+Cl−(aq)AgCl(s)+heat⟶Ag+(aq)+Cl−(aq) 2Fe2O3(s)+3C(s)+heat⟶4Fe(s)+3CO2(g)2Fe2O3(s)+3C(s)+heat⟶4Fe(s)+3CO2(g) C(graphite)+O2(g)⟶CO2(g)+heatC(graphite)+O2(g)⟶CO2(g)+heat CH4(g)+2O2(g)⟶CO2(g)+2H2O(l)+heat
Please explain
Data: C(graphite) + O2(g) => CO2(g) AH = -393.5 kJ H2(g) + 1/2O2(g) => H2O(1) AH = -285.8 kJ CH3OH(1) + 3/202(9) A CO2(g) + 2H20(1) AH = -726.4 kJ Using the data above, calculate the enthalpy change for the reaction below. Reaction: C(graphite) + 2H2(g) + 1/2O2(g) => CH3OH(1) A. +238.7 kJ B.-238.7 kJ C. +548.3 kJ D.-548.3 kJ E. +904.5 kJ
please help
Consider following chemical reactions: 1) CH.(g) + 2O2(g) → CO2(g) + 2H2O(1) 2) C(s) + O2(g) → CO2(g) 3) 2C(s) + O2(g) - 200(g) 4) 3C(s) + 2H2O) CH4(g) + 2COg) H2O(l) indicates that H20 is in liquid state. If the Enthalpy of reaction for reaction 1, 2, and 3 are -890.4kj, -393.5kj and - 221.Okj respectively; try to figure out the Enthalpy of reaction for reaction 4. Please show your work.
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Consider following chemical reactions: 1) CH2(g) + 2O2(g) → CO2(g) + 2H20(1) 2) C(s) + O2(g) → CO2(g) 3) 2C(s) + O2(g) 200(g) 4) 3C(s) + 2H2O(l) → CH4(9) + CO2(g) H2O(l) indicates that H2O is in liquid state. If the Enthalpy of reaction for reaction 1, 2, and 3 are -890.4kj, -393.5kj and -221.Okj respectively, try to figure out the Enthalpy of reaction for reaction 4. Please show your work.
Determine the enthalpy change for C(graphite) + O2(g) → CO2(g); AH= ? using the following three thermochemical equations, which will be referred to as reactions (A), (B), and (C). (A) Sro(s) + CO2(g) → SCO3(s);AH = -234 kJ (B) 2Sro(s) → 25r(s) + O2(g); AH= 1184 kJ (C) 2SrCO3(s) — 25r(s) + 2C(graphite) + 302(g); AH= 2440 kJ The value for AH = List what action you performed on each equation to achieve your goal. Equation (A) was Equation (B)...
Based on the following equations: 2 CO2(g) + O2(g) + 2 CO (g) AH- +566.0kJ 2(graphite) + O2(g) + 2 CO (5) AH = -221.0 kJ Determine the enthalpy change (AH) for the following reaction: C(graphite) + O2 (8) CO2(g)
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