Consider the reaction :N_(2)+3H_(2)rarr2NH_(3) carried out at constant – InterviewSolution

1.	Consider the reaction :N_(2)+3H_(2)rarr2NH_(3) carried out at constant temperature and pressure. If DeltaH and DeltaU are the enthalpy and internal energy changes for the reactions, which of the following expression is true
Answer» <P>`DELTAH = 0` `DeltaH = DeltaU` `DeltaH LT DeltaU` `DeltaH gt DeltaU` Solution :At constant P or T `DeltaH=DeltaU+DeltanRTimplies Deltan=n_(p)-n_(R)=2-4=-2` `therefore DeltaHltDeltaU`.

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