Chemistry-
General
Easy

Question

Given that; bond energies of H - Hand Cl - Cl are .430kJ/mol and 240 kJ/mol respectively capital delta H subscript f end subscript text  for  end text H C l is 90 kJ/mo! Bond enthalpy of HCl is:

  1. 380 kJ mol-1    
  2. 425 kJ mol-1    
  3. 245kJmol-1    
  4. 290kJmol-1    

The correct answer is: 425 kJ mol-1

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