Consider these reactions, where M represents a generic metal. 2M(s)+6HCl(aq)⟶2MCl3(aq)+3H2(g)ΔH1=−895.0 kJ HCl(g)⟶HCl(aq)  ΔH2=−74.8 kJ H2(g)+Cl2(g)⟶2HCl(g) ΔH3=−1845.0 kJ MCl3(s)⟶MCl3(aq)  ΔH4=−377.0 kJ Use the given information to determine the enthalpy of the reaction   2M(s)+3Cl2(g)⟶2MCl3(s)   ΔH=

Chemistry: Principles and Reactions
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Chapter8: Thermochemistry
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Problem 83QAP: Determine whether the statements given below are true or false. Consider enthalpy (H). (a) It is a...
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Consider these reactions, where M represents a generic metal.

  1. 2M(s)+6HCl(aq)⟶2MCl3(aq)+3H2(g)ΔH1=−895.0 kJ
  2. HCl(g)⟶HCl(aq)  ΔH2=−74.8 kJ
  3. H2(g)+Cl2(g)⟶2HCl(g) ΔH3=−1845.0 kJ
  4. MCl3(s)⟶MCl3(aq)  ΔH4=−377.0 kJ

Use the given information to determine the enthalpy of the reaction

 

2M(s)+3Cl2(g)⟶2MCl3(s)

 

ΔH=
 
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