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The species which by definition has ZERO standard molar enthalpy of formation at 298 K is

The species which by definition has ZERO standard molar enthalpy of formation at 298 K is
 

Grade:12th pass

1 Answers

Kaushàl
33 Points
7 years ago
Option B is the correct answer. 
As Bromine at 298k is in liquid state.
H2O and CH are complex compound i.e., they are formed from different elements.
 

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