2)Substance kJ/molSubstance kJ/molaStandardmolarenthalpies offormation of some substances,AH°, at 298 K are given on the left.TheCO(g)CO2(g)CH4(g)CH2(g)CH4(g)CH6(g)C3Hs(g)CH10(g)CН:ОН (1) —238.7СН-ОН(1) -277.7HF(g)HCI(g)-110.5-393.5HBr(g)HI(g)H20(g)H2O(1)H,S(g)NH3(g)NO(g)N20(g)NO2(g)N2O,(g)SO-(g)So;(g)-36.4026.48-241.8-74.81complete combustion ofethanol, (C2H$OH(I), yields CO2(g)and H20(1).Using the data given on the left,calculate the heat produced in thecombustion of 4 g of ethanol,C2H$OH(I), at room temperature.(CH;OH: 46.0 g/mol,Hint: First write and balance thecombustion reaction).226.7-285.8-20.6352.26-84.68-46.11-103.8-125.690.2582.0533.189.16-296.8-395.7-271.1-92.31aValues are for reactions in which one mole of substance is formed.AK

Interpretation- To determine the heat produced in the combustion of 4g of ethanol at room…

2) Substance kJ/mol Substance kJ/mol Standard molar enthalpies of formation of some substances, CO(g) CO2(g) CH4(g) CH2(g) CH4(g) CH6(g) C3Hs(g) CH10(g) CH-ОН(1) -238.7 С-Н-ОН(1)-277.7 HF(g) HCI(g) -110.5 -393.5 -36.40 26.48 -241.8 HBr(g) HI(g) H,O(g) H2O(1) H2S(g) NH3(g) NO(g) N20(g) NO2(g) N2O4(g) SO2(g) SO:(g) AH°, at 298 K are given on the left. The complete combustion of ethanol, (C2HSOH(), yields CO2(g) and H20(). Using the data given on the left, calculate the heat produced in the combustion of 4 g of ethanol, C2HSOH(I), at room temperature. (С-Н.ОН: 46.0 g/mol, Hint: First write and balance the combustion reaction). -74.81 -285.8 -20.63 226.7 52.26 -84.68 -103.8 -125.6 -46.11 90.25 82.05 33.18 9.16 -296.8 -395.7 -271.1 -92.31 aValues are for reactions in which one mole of substance is formed.

2) Substance kJ/mol Substance kJ/mol Standard molar enthalpies of formation of some substances, CO(g) CO2(g) CH4(g) CH2(g) CH4(g) CH6(g) C3Hs(g) CH10(g) CH-ОН(1) -238.7 С-Н-ОН(1)-277.7 HF(g) HCI(g) -110.5 -393.5 -36.40 26.48 -241.8 HBr(g) HI(g) H,O(g) H2O(1) H2S(g) NH3(g) NO(g) N20(g) NO2(g) N2O4(g) SO2(g) SO:(g) AH°, at 298 K are given on the left. The complete combustion of ethanol, (C2HSOH(), yields CO2(g) and H20(). Using the data given on the left, calculate the heat produced in the combustion of 4 g of ethanol, C2HSOH(I), at room temperature. (С-Н.ОН: 46.0 g/mol, Hint: First write and balance the combustion reaction). -74.81 -285.8 -20.63 226.7 52.26 -84.68 -103.8 -125.6 -46.11 90.25 82.05 33.18 9.16 -296.8 -395.7 -271.1 -92.31 aValues are for reactions in which one mole of substance is formed.

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...

See similar textbooks

Similar questions

A 3.971 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of the calorimeter and its contents increase from 24.87 ∘C to 28.06 ∘C. The heat capacity (calorimeter constant) of the calorimeter is 36.35 kJ/ ∘C, what is the heat of combustion per gram of the material?
Butane, C4H10, is widely used as a fuel for disposable lighters When one mole of butane is burned in oxygen, carbon dioxide and steam are formed and 2654.3382 kJ of heat are evolved.. C4H10 (9) + O₂(g) → 4CO₂(g) +5H₂O(1) The standard enthalpies of formation of CO₂ and H₂O are: CO2(g)=-394.87 kJ/mol H₂O(1)=-285.59 kJ/mol Calculate the standard heat of formation of butane. (Round answer to the second decimal place)
1) How much thermal energy is required to raise a temperature of 6.omL of water from 25°C to 75°C In a calorimeter closed system?
Use standard heats of formation to calculate the change in enthalpy for the following reactions: a. 2C(s,graphite) + O2(g) → 2CO(g) b. 2H2O2(l) → 2H2O(l) + O2(g) c. 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)
Use a table of standard enthalpies of formation to calculate AH°rxn for each of the following reactions. An appendix of standard enthalpies of formation is attached. a) 4 NH3 (9) + 5 O2 (9) → 4 NO (g) + 6 H2O (g) number or fraction only kJ/mol b) 2 Cus (s) + 3 O2 (g) → 2 Cuo (s) + 2 SO2 (g) number or fraction only kJ/mol
Combustion of a hydrocarbon, X, is given by the equation: 2 X + 5 O2 (g) --> 4 CO2 (g) + 6 H2O (g) ∆H = -75.0 kJ Determine the standard enthalpy of formation of the hydrocarbon, X.
Use standard enthalpies of formation to calculate ΔH∘rxnΔHrxn∘ for the following reaction: CaO(s)+CO2(g)→CaCO3(s)CaO(s)+CO2(g)→CaCO3(s) Express your answer using four significant figures and kJ.
Given the standard enthalpies of formation for the following substances, determine the reaction enthalpy for the following reaction. 2N2H4(g) + 2NO2(g) 3N2(g) + 4H20(g) AHrxn = ? kJ Substance AH°, kJ/mol N2H4(g) +95.4 NO2(g) H20(g) +33.1 -241.8 Select one: a. +1,224.2 kJ b. -967.2 kJ/mol C. +967.2 kJ/mol d. +257.0 kJ/mol e. -1,224.2 kJ
a) From the table of standard enthalpies of formation given below, calculate the standard enthalpy of the following reaction. Ca3P2(s) + 6HCl(g) ----> 3CaCl2(s) + 2PH3(g) Compound ΔHfo(KJ/mole) Ca3P2(s) -504 HCl(g) -92 CaCl2(s) -794 PH3(g) +9
5. Use standard heats of formation and the following equation to determine the enthalpy of formation of C₂H() ΔΗ, = -3127 kJ 2C₂H6(g) +70₂(g) ⇒ 4CO2(g) + 6H₂O)
Given the standard enthalpies of formation for the following substances, determine the change in the enthalpy for the combustion of 1.0 mol of propane, C3H8. Substance ΔH ̊f in (kJ/mol) C3H8 (g) -103.8CO2(g) -393.5 H2O(l) -285.8
Using molar enthalpies of formation, determine the heat of reaction (KJ) for the combustion of 1.0000 mole of methanol.2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(l) ΔHf° (kJ/mol):CH3OH(l) = −238.7CO2(g) = −393.5H2O(l) = −285.8