Which equation is needed to calculate AHrxn from enthalpy of formation and entropy values?Choose one:ΔΗASrxnTO AH°.rxn- ΣηΔΗf, products-ΣηΔΗ.starting materialsO AS°= Ens°rxnproductsEmS°starting materials Which equation is needed to calculate AS pan from enthalpy of formation and entropy values?Choose one:ΔΗAS°rxnTO AH°.- ΣηΔΗ,f, productsEMAH°,starting materialsrxnO AS°.rxn= EnS°.productsEmS°,starting materials

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Which equation is needed to calculate AHP ran from enthalpy of formation and entropy values? Choose one: ΔΗ AS° rxn т Ο ΔΗ, ixn = ENAH°, f, products EMAH° starting materials O AS = EnS°. products - EmS°. starting materials rxn

Which equation is needed to calculate AHP ran from enthalpy of formation and entropy values? Choose one: ΔΗ AS° rxn т Ο ΔΗ, ixn = ENAH°, f, products EMAH° starting materials O AS = EnS°. products - EmS°. starting materials rxn

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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(Q68) Using the tabulated values from the text (located in Appendix G, beginning at p. 1211) calculate (and report in J/K) the standard entropy of reaction (AS°rxn) for the formation of gaseous nitric acid from its elements as indicated in the following balanced chemical equation: H2 (g) + N2 (g) + 3 O2 (g) --> 2 HNO3 (g)
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Using the given molar enthalpies of formation, determine the change in enthalpy for the combustion of 1 mole of methanol. , AH°; CH3OH (4) =- 238.6 kJ/mol AH°; CO2 (g) = - 110.5 kJ/mol AH°; H2O (g) = – 241.8 kJ/mol 3 CH3OH (e) +02 (g) → CO2 (g) + 2H2O (g)
ences to access important values if needed for this question. When 5.42 g of potassium bromide (KBr) is dissolved in 114g of water in a styrofoam calorimeter of negligible heat capacity, the temperature drops from 25.00 to 23.03 °C. Based on this observation, calculate q for the water and AH° for the process, assuming that the heat absorbed by the salt is negligible, KBr(s) K*(aq) + Br (aq) The specific heat of water is 4.184] °C¹g¹. Give the answers in kJ. ан, о AHO
(Q70) Using the tabulated values from the text (located in Appendix G, beginning at p. 1211) calculate (and report in kJ) the standard Gibbs free energy (AG°rxn) for the net reaction that occurs during photosynthesis: 6 H2O (1) + 6 CO2 (g) --> C6H12O6 (s) + 6 O2 (g). The AG°; for glucose (C6H1206) is -1273.3 kJ/mol.
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Pentaborane, Bs Ha, was once i Studied asYatpotentials roCket fuel.)calculate Srutthe heat given Offocwhen 1o mole Of pentaborane reactSocwith excess ing 2 Bs Hq (g)+ 120z(g) 5BzOś (8)+ 9 H,0(9). a ccordi to use the AHf values: following use · AHf = Bslta (g) = 73.2 KJ/ mol %3D • AHf =BzO3 (S) = - 1272 K)/mo. =-24).83 K/mol 131
Calculate AGran in kJ, at 298K for the following reaction using the conditions given below. R = 8.314 J/mol.K SO3 (g) + H₂O (9) H₂SO4 (1) AGran = -90.5 (A) mol Pso3 = 0.20 atm, Pu,o = 0.88 atm Express your answer to one decimal place.
O-234 kJ 234 kJ -150. kJ -117 kJ Given: -1835kJ AH°, AHᵒf (kJ/mol) -941 -840 QUESTION 12 Use the standard reaction enthalpies given below to determine AH°rxn for the following reaction: P4(g) + 10 Cl₂(g) → 4 PC|5(s) PC15(s) → PC13(g) + Cl₂(g) P4(g) + 6 Cl₂(g) → 4 PCl3(g) rxn IF7(g) IF 5(9) 2(g) 62.42 = ? ΔΗ° rxn AH°rxn = +157 kJ = -1207 KJ QUESTION 13 Use the AH°f and AH°rxn information provided to calculate AH°f for IF: IF7(9) + 12(g) → IF5(g) + 2 IF(g) AH°rxn = -89 kJ
3 C2H2(g) → CHo(g) What is the standard enthalphy change AH°, for the reaction represented above? (AH®7of C2H2(g) is 230 kJ mol-1; (AH®5of €CGH6(g) is 83 kJ mol-1:) (A) -607 kJ (B) -147 kJ (C) (C) -19 kJ (D) +19 kJ (E) +773 kJ