Calculate the standard enthalpy of formation ( in KJ/mol) of liquid methanol, CH3OH(1), using thefollowing information:C(graph) + O2 – CO2(g) AH° = -393.5 kJ/molH2(g) + (1/2)02 → H20(1) AH° = -285.8 kJ/molCH3OH(I) + (3/2)O2(g) → CO2(g) + 2H2O(1) AH° = -726.4 kJ/molINPUT your answer HERE in 3 significant figures. Numerical answer only, exclude the units. Do not forget the +/or - sign.

The reactions are given areas follows C(graph) + O2(g)----------->CO2(g)…

Calculate the standard enthalpy of formation ( in KJ/mol) of liquid methanol, CH3OH(1), using the following information: C(graph) + O2 CO2(g) AH° = -393.5 kJ/mol H2(8) + (1/2)02 → H20(1) AH° = -285.8 kJ/mol CH3OH(1) + (3/2)O2(3) → CO2(g) + 2H2O(1) AH° = -726.4 kJ/mol INPUT your answer HERE in 3 significant figures. Numerical answer only, exclude the units. Do not forget the +/ or - sign.

Calculate the standard enthalpy of formation ( in KJ/mol) of liquid methanol, CH3OH(1), using the following information: C(graph) + O2 CO2(g) AH° = -393.5 kJ/mol H2(8) + (1/2)02 → H20(1) AH° = -285.8 kJ/mol CH3OH(1) + (3/2)O2(3) → CO2(g) + 2H2O(1) AH° = -726.4 kJ/mol INPUT your answer HERE in 3 significant figures. Numerical answer only, exclude the units. Do not forget the +/ or - sign.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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enon 19 of 23 For the chemical reaction Ca (s) + % O2 (g) What is the enthalpy for the reaction 2 CaO (s) → 2 Ca (s) + O2 (g)? CaO (s) AH° = -635 kJ/mol.
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Use the thermochemical equations shown below to determine the enthalpy for this reaction: 2 H2O(g) + 2 Cl2(g) →4 HCl (9) + O2(g) ΔΗ xn Information: COCI 2(g) + H2O(l) → CH2Cl2(1) + O2(g) AH = 19 kJ H2O(g) →H2O(l) AH = -44 kJ HCI (g) 1/2 H2(g) +1/2 Cl2(g) AH = 92 kJ CH2Cl2(1) + H2(g) + 3/2 O2(g) → COCI 2(g) + 2 H2O (1) AH=-161k]
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Using standard heats of formation, calculate the standard enthalpy change for the following reaction. 2HBr(g) + Cl₂(g) → 2HCl(g) + Br₂(g) AH (HBr(g)) = -36.3 kJ/mol AH (Cl₂ (9)) = 0.0 kJ/mol AH (HCl(g)) = -92.3 kJ/mol AH (Br₂ (9)) = 30.9 kJ/mol AH rxn = kJ
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（1）Consider the reaction: 2A (g) + 3 B (g) → 2 C (g) ΔHrxn = +254.3 kJ What will be the enthalpy change (in kJ) if 0.471 mol B reacts in excess A? （2）Consider the reaction: C (s) + O2 (g) → CO2 (g) ΔHrxn = -393.5 kJ What mass of carbon (in g) must be reacted via this mechanism to release 581.2 kJ of heat?