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IAT IISER2023ChemistryThermodynamics (C)

Consider the following reaction: CH ₄( ~g ) C ( g )+4 H ( g ) ; _a H^0=1665 ~kJ ~mol ⁻¹ Which of the statements is FALSE?

Options

  1. A_a H^0 is the mean bond enthalpy of a C-H bond.
  2. BThe energy required to break individual C - H bonds in successive steps is different.
  3. CMean C-H bond enthalpies differ slightly from compound to compound.
  4. DAll four C-H bonds in CH ₄ are identical in bond length and energy.

Correct answer

A. _a H^0 is the mean bond enthalpy of a C-H bond.

Step-by-step solution

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