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MHT CET202013 Oct 2020Evening ShiftChemistryThermodynamics (C)Actual

For following reaction, relation between H and U is 2 SO _ 3( ~g ) + O _ 2( ~g ) 2 SO _ 3( ~g )

Options

  1. AH = U -2 RT
  2. BH = U - RT
  3. CH = U +2 RT
  4. DH = U + RT

Correct answer

B. H = U - RT

Step-by-step solution

H = U + n _ ( g ) RT 2 SO _ 2( ~g ) + O _ 2( ~g ) 2 SO _ 3( ~g ) n = n _ p - n _ r =2-3=-1 H = U - RT

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