Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Step 1
2CH3OH(g) -----> 2CH4(g) + O2(g) ∆H = +252.8 kJ
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- Based on the enthalpy of the above reaction, what is the fuel value of glucose on a per gram basis? C6H12O6(s)+6O2(g) = 6CO2(g) + 6H2O(l) triangle H degrees=-2803 kJarrow_forwardCalculate AH for the following reaction, given the data in the table below: H2SO4() → So:(g) + H2O(g) AH = ??? kJ/mol H2S(g) +202(g)→ H2SO4(1) AH = -749.7 kJ H,S(g) + 202(g) → SO3(g) + H2O(1) AH = -355.0 kJ H20(1) H20(g) AH = +53.95 kJarrow_forwardGiven that enthalpy of formation of the several compounds: C(s)+O2(g)>CO2(g);AH=-393.5kJ S(s)+O2(g)→SO2(g);AH=-296.8kJ C(s)+2S(s)→CS2(1);AH=+87.9 kJ Determine the enthalpy of combustion reaction of carbon disulfide!arrow_forward
- Given the heat of formation of the following compounds: CO2(g) ΔfH° = -393.5 kJ/mol H2O(l) ΔfH° = -285.9 kJ/mol CH3OH(l) ΔfH° = -238.6 kJ/mol What is the value of ΔrH° for the reaction: CH3OH(l) + 3/2 O2(g) → CO2(g) + 2 H2O(l)arrow_forward6. Heat of Formation. Give the balanced chemical equation used to find the heat of formation of the following a) CH3COOH (1) b) Na2SO4(s)arrow_forwardGiven the data below, H°, for the reaction rxn 3C12 (g) + PH3 (g) → PCI3 (g) + 3HCI (g) is kJ. AH° (PCI3 (g) = -288.07 kJ/mol AH°F (HCI (g)) = -92.30 kJ/mol AH°r (PH3 (g)) = 5.40 kJ/mol 570.37 O The AH°, of Cl2 (g) is needed for the calculation. -385.77 385.77 -570.37arrow_forward
- Consider the problem below: (Equation 1) CaCO3(s) → CaO(s) + CO2(g) AH = 178 kJ/mol (Equation 2) CO(g) + O3(g) → CO2(9) + 20(g) AH = -425.7 kJ/mol %3D (Equation 3) 2 O(a) → O2(a) AH = -498 kJ/mol (Equation 4) CaCO3(s) + O2(9) → CaO(s) + CO(g) + O3(9) AH = ??????? The AH for equation 4 is: (express in kJ) Screen reader version Consider the problem below: (Equation 1) C a CO3(s) arrow Ca Ols) + CO22) AH = 178 kJ/mol (Equation 2) CO(g) + O3(g) arrow CO2(g) + 20(2) AH = minus 425.7 kJ/mol (Equation 3) 2 O(2) arrow O2(e) AH = minus 498 kJ/mol (Equation 4) C a CO3(s) + O2(g) arrow C a O(s) + C Og) + O3(2) AH = ??????? %3D The AH for equation 4 is: _(express in kJ)arrow_forwardThe chemical equation for photosynthesis is as follows: 6 CO2 + 6 H2O → CoH1206 ( + 6 02 Every year, the mass of carbon dioxide used by this reaction on a small island is 2.85 x 10 kg. What is the annual enthalpy change resulting from photosynthesis on the island? Compound AH° (kJ/mol) -1268 02 CO2 -393.5 HO -285.8 O 303 x 10 k Q 2.54 x 10 k O 254 x 10 k O 153x 10' k 0412x 10 karrow_forwardConsider the reaction: 8 H2O (l) + 4CO2 (g)→4 CH3OH (l) + 6 O2 (g) ΔH = +2905.6 kJ What is ΔH for the following reaction? 2 CH3OH (l) + 3 O2 (g) →4 H2O (l) + 2 CO2 (g)arrow_forward
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