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From the following heats of combustion, CH3OH(1) + 02(g) → CO;(g) + 2H,O(1) AH =-726.4 kJ/mol rxn C(graphite) + O2(g) → CO:(g) AH =-393.5 kJ/mol rxn H;(g) + 0;g) → H,0(1) AH° =-285.8 kJ/mol rxn Calculate the enthalpy of formation of methanol (CH3OH) from its elements: C(graphite) + 2H¿(g) +;02g) → CH3OH(O kJ/mol

From the following heats of combustion, CH3OH(1) + 02(g) → CO;(g) + 2H,O(1) AH =-726.4 kJ/mol rxn C(graphite) + O2(g) → CO:(g) AH =-393.5 kJ/mol rxn H;(g) + 0;g) → H,0(1) AH° =-285.8 kJ/mol rxn Calculate the enthalpy of formation of methanol (CH3OH) from its elements: C(graphite) + 2H¿(g) +;02g) → CH3OH(O kJ/mol

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 4E: Calculate the heat capacity, in joules and in calories per degree, of the following: (a) 28.4 g of...
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Calculate the heat (in kJ) associated with the cooling of 303 g of mercury from 86.8°C to 12.0°C. kJ
Transcribed Image Text:Calculate the heat (in kJ) associated with the cooling of 303 g of mercury from 86.8°C to 12.0°C. kJ
From the following heats of combustion, 3 CH3OH(1) +02(g) → CO:(g) + 2H,0(1) AH =-726.4 kJ/mol rxn C(graphite) + O2(g) → CO,(g) AH =-393.5 kJ/mol rxn 1 H2(g) +02(g) → H2O(1) AH° =-285.8 kJ/mol rxn Calculate the enthalpy of formation of methanol (CH3OH) from its elements: C(graphite) + 2H,(E) + 02(g) → CH3OH(1) kJ/mol
Transcribed Image Text:From the following heats of combustion, 3 CH3OH(1) +02(g) → CO:(g) + 2H,0(1) AH =-726.4 kJ/mol rxn C(graphite) + O2(g) → CO,(g) AH =-393.5 kJ/mol rxn 1 H2(g) +02(g) → H2O(1) AH° =-285.8 kJ/mol rxn Calculate the enthalpy of formation of methanol (CH3OH) from its elements: C(graphite) + 2H,(E) + 02(g) → CH3OH(1) kJ/mol
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