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MHT CET20226 Aug 2022Morning ShiftChemistryThermodynamics (C)Actual

The difference between enthalpy change and internal energy change for the combustion of one mole of ethyl alcohol is

Options

  1. A- 1 2
  2. B-1.5 RT
  3. C-RT
  4. D-2 RT

Correct answer

C. -RT

Step-by-step solution

aligned & C ₂ H ₅ OH ( )+3 O ₂( ~g ) 2 CO ₂( ~g )+3 H ₂ O ( ) & H = E + _ ng RT aligned Here _ ng =2-3=-1 H= E-R T

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