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MHT CET20239 May 2023Evening ShiftChemistryThermodynamics (C)Actual

What is the value of H - U for the following reaction? 2 C _ ( s ) +3 H _ 2( ~g ) C ₂ H _ 6( ~g )

Options

  1. A4 RT
  2. B-5 RT
  3. CRT
  4. D-2 RT

Correct answer

D. -2 RT

Step-by-step solution

aligned & n _ g = (moles of product gases) & n _ g =1-3=-2 ~mol & Now, using formula, & H = U + n _ g RT & H = U -2 RT & H - U =-2 RT aligned

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