Chemistry-
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Question

Forareaction2X(s)+2Y(s)→2C(ell)+D(g)Theqp at27°Cis–28Kcal.mol1 Thqis..........K.Calmol1

  1. 27.4    
  2. +27.4    
  3. 28.6    
  4. 28.6    

The correct answer is: –28.6

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