Part A AH is an Extensive Property button within the activity, and analyze the relationship between the two reactions that are displayed The reaction that was on Click the the screen when you started and its derivative demonstrate that the change in enthalpy for a reaction, AH, is an extensive property Using this property, calculate the change in enthalpy for Reaction 2 Reaction 1: C3 Hs(g) + 502(g)→+3CO2(g) + 4H20(g), AH¡ =-2043 kJ Reaction 2: 5C3 Hs(g) +2502(g)-→15CO2(g) + 20H2O(g), AH2 =? Express your answer to four significant figures and include the appropriate units. > View Available Hint(s) AH2 = Value Units

Part A AH is an Extensive Property button within the activity, and analyze the relationship between the two reactions that are displayed The reaction that was on Click the the screen when you started and its derivative demonstrate that the change in enthalpy for a reaction, AH, is an extensive property Using this property, calculate the change in enthalpy for Reaction 2 Reaction 1: C3 Hs(g) + 502(g)→+3CO2(g) + 4H20(g), AH¡ =-2043 kJ Reaction 2: 5C3 Hs(g) +2502(g)-→15CO2(g) + 20H2O(g), AH2 =? Express your answer to four significant figures and include the appropriate units. > View Available Hint(s) AH2 = Value Units

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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tery [References) You mix 125 mL of 0.300 M CSOH with 50.0 mL of 0.750 M HF in a coffee-cup calorimeter, and the temperature of both solutions rises from 20.70 °C before mixing to 24.17 °C after the reaction. CSOH(aq) + HF(aq) CsF(aq) + H20(4) What is the enthalpy of reaction per mole of CSOH? Assume the densities of the solutions are all 1.00 g/mL, and the specific heat capacities of the solutions are 4.2 J/g K. Enthalpy of reaction kJ/mol Submit Answer Try Another Version 6 item attempts remaining
We would like to figure out the enthalpy of the decomposition of nitrosyl chloride (ΔHdec) into its elements, but cannot do so experimentally. Fortunately, we know the enthalpy change of two other reactions. Use these to figure out the desire enthalpy change. Show your work. 2NOCl(g) → N2(g) + O2(g) + Cl2(g) ΔHdecunknown ½N2(g) + ½O2(g) → NO(g) ΔH1 = 90.3 kJ NO(g) + ½Cl2(g) → NOCl(g) ΔH2 = -38.6 kJ
Given the following thermochemical equations P4(s) + 6C12(g) 4PCI3(g) AH = -2439 kJ/mol 4PCI5(g) → P4(s) + 10CI 2(g) AH = 3438 kJ/mol find the AH for the reaction below, PCI5(g) → PC|3(g) + Cl2(g) O A) +249.8 kJ/mol O B) +999 kJ/mol O C) -999 kJ/mol O D) -249.8 kJ/mol
< Question 21 of 29 O Attempt 2 When 0.376 g of sodium metal is added to an excess of hydrochloric acid, 3910 J of heat are produced. What is the enthalpy of the reaction as written? 2 Na(s) + 2 HCI(aq) 2 NaCl(aq) + H2(g) Enthalpy of reaction: 478.35 kJ Incorrect
according to the following reaction,
Calculate the enthalpy change for the following reaction, _C₂H4 (9) + using the following standard heats of formation: AH(C₂H4) = +52.5 kJ/mol; AH(CF4) =-933.0 kJ/mol; AH (HF) =-271.6 kJ/mol _F₂(g) → _CF4(g) + _HF(g)
Consider the following reaction. CH3OH(g)  CO(g) + 2 H2(g)    H = +90.7 kJ (a) Is the reaction exothermic or endothermic? endothermicexothermic     (b) Calculate the amount of heat transferred when 40.0 g of CH3OH(g) are decomposed by this reaction at constant pressure.H =   kJ(c) If the enthalpy change is 11.0 kJ, how many grams of hydrogen gas are produced?  g(d) How many kilojoules of heat are released when 13.5 g of CO(g) reacts completely with H2(g) to form CH3OH(g) at constant pressure?H =  kJ(e) Calculate E when 360.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K   kJ HopHelpCh5N1
Consider the following reaction. CH3OH(g)  CO(g) + 2 H2(g)    H = +90.7 kJ (a) Is the reaction exothermic or endothermic? exothermic endothermic     (b) Calculate the amount of heat transferred when 55.0 g of CH3OH(g) are decomposed by this reaction at constant pressure.H =   kJ(c) If the enthalpy change is 11.0 kJ, how many grams of hydrogen gas are produced?  g(d) How many kilojoules of heat are released when 12.0 g of CO(g) reacts completely with H2(g) to form CH3OH(g) at constant pressure?H =   kJ(e) Calculate E when 450.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K
What is the enthalpy change when 2.00 mol of oxygen (O2) react? C12H22O11(s) + 12 O2(g) →   12 CO2(g) + 11 H2O(l)   ΔH = -5644 kJ
Consider the following reaction. CH3OH(g) CO(g) + 2 H2(g) H = +90.7 kJ (a) Is the reaction exothermic or endothermic? endothermicexothermic (b) Calculate the amount of heat transferred when 40.0 g of CH3OH(g) are decomposed by this reaction at constant pressure.H = kJ(c) If the enthalpy change is 11.0 kJ, how many grams of hydrogen gas are produced? g(d) How many kilojoules of heat are released when 13.5 g of CO(g) reacts completely with H2(g) to form CH3OH(g) at constant pressure?H = kJ(e) Calculate E when 360.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K kJ HopHelpCh5N1
The oxidation of glucose is a fundamental metabolic process in almost all types of life. In cells it is carried out through a complex series of catalytic enzyme reactions. If the standard enthalpy of formation of glucose is -1274 kJ / mol, what is the value of the enthalpy change of reaction in this process? The reaction for the process is as follows (check it). C6H12O6(s) + O2(g) CO2(9) + H2Ou)
MISSED THIS? Read Section 7.6 (Pages 281- 284), Watch IWE 7.7 View Available Hint(s) Nitromethane (CH,NO2) burns in air to produce significant amounts of heat via the following reaction Hint 1. Calculate the number of moles of nitromethane 2CH,NO, (1) +O2(g)→ 2CO2(g) +3H,O(1) + N2(g) The value of AH is related to the balanced chemical equation by the number of moles of nitromethane. Calculate the number of moles of nitromethane in a 2.73-kg sample. AHn -1418 kJ Express your answer in moles. mol CH, NO2 44.72 Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Convert the mass of nitromethane from kg to g. Then use the molar mass of nitromethane as a conversion factor to obtain a value in mol HA Value Units = b