Calculate AG and show that the reaction is spontaneous at 25°C. ΔG° kJ =

Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter8: Thermochemistry
Section: Chapter Questions
Problem 72QAP: On complete combustion at constant pressure, a 1.00-L sample of a gaseous mixture at 0C and 1.00 atm...
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The combustion of acetylene is used in welder's torches because it produces a very hot flame:
5
C₂ H2(g) + O2(g) → 2 CO₂ (g) + H₂O(g)
AH = -1255.5 kJ
Substance Sº (J mol-¹ K-¹)
C₂ H₂(g)
200.8
O₂(g)
CO₂(g)
H₂O(g)
205.0
213.6
188.7
Transcribed Image Text:The combustion of acetylene is used in welder's torches because it produces a very hot flame: 5 C₂ H2(g) + O2(g) → 2 CO₂ (g) + H₂O(g) AH = -1255.5 kJ Substance Sº (J mol-¹ K-¹) C₂ H₂(g) 200.8 O₂(g) CO₂(g) H₂O(g) 205.0 213.6 188.7
Calculate AG and show that the reaction is spontaneous at 25°C.
AGⓇ =
kJ
The reaction is spontaneous at 25°C because
Submit
is
AH°
AS™
AG⁰
Transcribed Image Text:Calculate AG and show that the reaction is spontaneous at 25°C. AGⓇ = kJ The reaction is spontaneous at 25°C because Submit is AH° AS™ AG⁰
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