7. Use the following Alf values to calculate Aff" for the following reaction: Answer: AI--2497 kJ AH, (kJ/mol) C₂Hg) + 6F:(g) +52.3 0 → Follow Steps 1-3 to obtain your answer. STEP 1: Using the AH, values, calculate EAH, for the products. (Don't forget to use the coefficients in the balanced reaction. The AHF values given are for 1 mole of substance.) Remember that 2 - sum. STEP 3: Calculate AH for the reaction. AH-ZAH (products) - ZAH(reactants) 2CF (g) + 4HF(g) -680 -271.1 STEP 2: Using the AH values, calculate EAH, for the reactants. (Don't forget to use the coefficients in the balanced reaction. The AH values given are for I mole of substance.) Why does F₂(g) have a value of 0 for AH?
7. Use the following Alf values to calculate Aff" for the following reaction: Answer: AI--2497 kJ AH, (kJ/mol) C₂Hg) + 6F:(g) +52.3 0 → Follow Steps 1-3 to obtain your answer. STEP 1: Using the AH, values, calculate EAH, for the products. (Don't forget to use the coefficients in the balanced reaction. The AHF values given are for 1 mole of substance.) Remember that 2 - sum. STEP 3: Calculate AH for the reaction. AH-ZAH (products) - ZAH(reactants) 2CF (g) + 4HF(g) -680 -271.1 STEP 2: Using the AH values, calculate EAH, for the reactants. (Don't forget to use the coefficients in the balanced reaction. The AH values given are for I mole of substance.) Why does F₂(g) have a value of 0 for AH?
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter18: Principles Of Chemical Reactivity: Entropy And Free Energy
Section: Chapter Questions
Problem 16PS: Using values of fH and S, calculate rG for each of the following reactions at 25 C. (a) 2 Na(s) + 2...
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Transcribed Image Text:7. Use the following Alf values to calculate Aff" for the following reaction:
Answer: All --2497 kJ
AH°,
(kJ/mol)
C₂H.(g) + 6F:(g)
+52.3
0
→
Follow Steps 1-3 to obtain your answer.
STEP 1: Using the AH values, calculate EAH, for the products. (Don't forget to use
the coefficients in the balanced reaction. The AHF values given are for I mole of
substance.) Remember that 2-sum.
STEP 3: Calculate AH® for the reaction.
AH-ZAH (products) - ZAH(reactants)
2CF (g) + 4HF(g)
-680
-271.1
STEP 2: Using the AH values, calculate EAH' for the reactants. (Don't forget to use
the coefficients in the balanced reaction. The AH values given are for I mole of
substance.)
Why does F₂(g) have a value of 0 for AH?
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