234 KJ -150. KJ -117 kJ QUESTION 12 Use the standard reaction enthalpies given below to determine. AH°rxn for the following reaction: P4(g) + 10 Cl2(g) → 4 PC15(s) ΔΗ, = ? rxn PC15(s)→ PC13(g) + Cl₂(g) P4(g) + 6 Cl₂(g) → 4 PC13(9) Given: -1835kJ AH°f (kJ/mol) -941 -840 QUESTION 13 Use the AH°f and AH°rxn information provided to calculate AH°f for IF: AH rxn IF7(g) + 12(g) → IF5(g) + 2 IF(g) IF7(g) IF 5(9) 12(g) 62.42 AHⓇ rxn AHⓇ = -1207 KJ rxn 1 = +157 kJ = -89 kJ
234 KJ -150. KJ -117 kJ QUESTION 12 Use the standard reaction enthalpies given below to determine. AH°rxn for the following reaction: P4(g) + 10 Cl2(g) → 4 PC15(s) ΔΗ, = ? rxn PC15(s)→ PC13(g) + Cl₂(g) P4(g) + 6 Cl₂(g) → 4 PC13(9) Given: -1835kJ AH°f (kJ/mol) -941 -840 QUESTION 13 Use the AH°f and AH°rxn information provided to calculate AH°f for IF: AH rxn IF7(g) + 12(g) → IF5(g) + 2 IF(g) IF7(g) IF 5(9) 12(g) 62.42 AHⓇ rxn AHⓇ = -1207 KJ rxn 1 = +157 kJ = -89 kJ
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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Transcribed Image Text: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
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