NEET Chemistry · Medium

Thermodynamics: Heat of reaction MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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Heat of reactionMediumQuestion 23038

Question

If bonds broken require 800 kJ and bonds formed release 1000 kJ, ΔH\Delta H is:

  1. A
    -200 kJ
    Correct
  2. B
    200 kJ
  3. C
    1800 kJ
  4. D
    0

Correct answer

-200 kJ

Explanation

ΔH=Σ\Delta H = \Sigma bond broken - Σ\Sigma bond formed.