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For a hypothetical reaction A → B, the activation energy for forward and backward reactions are 19 kJ/mol and 9 kJ/mol respectively. The heat of reaction is
  • a)
    9kJ mol−1
  • b)
    19kJ mol−1
  • c)
    +10 kJ mol−1
  • d)
    28kJ mol−1
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
For a hypothetical reactionA → B, the activation energy for forwa...
Explanation:

Activation Energy:
- The activation energy for the forward reaction (A → B) is 19 kJ/mol.
- The activation energy for the backward reaction (B → A) is 9 kJ/mol.

Heat of Reaction:
- The heat of reaction can be calculated using the activation energies for the forward and backward reactions.
- Heat of reaction = Activation energy for forward reaction - Activation energy for backward reaction
- Heat of reaction = 19 kJ/mol - 9 kJ/mol = 10 kJ/mol
Therefore, the correct answer is option C which is +10 kJ/mol. This indicates that the reaction is endothermic, requiring energy input to proceed from A to B.
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For a hypothetical reactionA → B, the activation energy for forward and backward reactions are19kJ/mol and9kJ/mol respectively. The heat of reaction isa)9kJ mol−1b)19kJ mol−1c)+10 kJ mol−1d)28kJ mol−1Correct answer is option 'C'. Can you explain this answer?
Question Description
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