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COMEDK2017ChemistryThermodynamics (C)

If one mole of ammonia and one mole of hydrogen chloride are mixed in a closed container to form ammonium chloride gas, then

Options

  1. AH> U
  2. BH= U
  3. CH < U
  4. Dthere is no relationship

Correct answer

C. H < U

Step-by-step solution

n_ g =n_ P -n_ R =1-2=-1 Also, H= U+ n_ g R T H- U=- Re [ n_ g =- ve ] M < U

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