When ethene is treated in a calorimeter with H2 and a Pt catalyst, the heat of reaction is found to be -137kJ/mol (-32.7 kcal/mol), and the reaction goes to completion. When the reaction takes place at 1400 °K, the equilibrium is found to be evenly balanced, with Compute the value of ΔS for this reaction.

Transcribed Image Text:

CH2-CH2 + H2 calst, CH-CH AH-137 kJ/mol (-32.7 kcal/mol) CH3-CH3 -137 kJ/mol (-32.7 kcal/mol) ΔΗ