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MHT CET202313 May 2023Morning ShiftChemistryThermodynamics (C)Actual

For the reaction 2   H 2   +   O 2   →   2   H 2 O ,   → ∆ H   =   -   571 . Bond energy of H - H   =   435 and   O   =   O   =   498 . Then the average bond energy of O - H bond will be

Options

  1. A484
  2. B-   484
  3. C271
  4. D-   271

Correct answer

A. 484

Step-by-step solution

For the reaction 2   H 2   +   O 2   →   2   H 2 O   ( 2   H   -   O   -   H )   ∆ r H   =   2   ×   BE   ( H 2 )   +   BE   ( O 2 )   -   4   ×   BE   ( O   -   H )   -   571   =   2   ×   435   +   498   -   4   ×   BE   ( O -   H )   or   BE   ( O   - &#1

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