Chemistry-
General
Easy

Question

Thstandarmolar heat oformatioof ethane, CO2,andwater(ellarrespectively21.1,–94.1and 68.3Kcal.Thestandardmolarheatofcombustion of ethanwill be-

  1. 372Kcal    
  2. 162Kcal    
  3. –240Kcal    
  4. –183.5Kcal    

The correct answer is: –240Kcal

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