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MHT CET202122 Sep 2021Morning ShiftChemistryThermodynamics (C)Actual

Enthalpy of formation of methane is -75 ~kJ / mol . What is the enthalpy change for formation of 24 ~g of methane?

Options

  1. A-112.5 ~kJ
  2. B-75 ~kJ
  3. C-150 ~kJ
  4. D-130 ~kJ

Correct answer

A. -112.5 ~kJ

Step-by-step solution

Enthalpy of formation for 1 ~mol methane ( CH ₄ ) is -75 ~kJ / mol moles of CH ₄= 24 16 =1.5 moles Change in enthalpy of formation =-75 1.5=-112.5 ~kJ

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