Chemistry-
General
Easy

Question

Findtheheatchangein thereaction NH3(g)+HCl(gNH4Cl(s) fromthefollowingdata
NH3(g)+aq→NH3(aq),ΔH=–8.4K.Cal
HCl(g)+aq→HCl(aq),ΔH=–17.3KCal
NH3(aq)+HCl(aq)→NH4Cl(aq)H=–12.5KCal
NH4Cl(S)+aq→NH4Cl(aq),ΔH=+3.9K.Cal

  1. 42.1    
  2. 34.3    
  3. +34.3    
  4. +42.1    

The correct answer is: –42.1

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