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MHT CET2008ChemistryThermodynamics (C)

If E is the heat of reaction for C ₂ H ₅ OH ( l )+3 O ₂(g) 2 CO ₂( ~g )+3 H ₂ O ( l ) at constant volume, the H (heat of reaction at constant pressure), at constant temperature is

Options

  1. AH= E+R T
  2. BH= E-R T
  3. CH= E-2 R T
  4. DH= E+2 R T

Correct answer

B. H= E-R T

Step-by-step solution

We know that, H= E+ n R T where, n= number of moles of gaseous products - number of moles of gaseous reactants array lrl & =2-3= & -1 So, & & H= E-R T array

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