MCQ
Which of the following is always negative for exothermic reaction?
  • $\Delta$ $H$
  • B
    $\Delta$ $S$
  • C
    $\Delta G$
  • D
    None of these

Answer

Correct option: A.
$\Delta$ $H$
a
Heat is give out during exothermic reaction

$\therefore H _{ R }\,>\, H _{ P } ; \Delta H = H _{ P }- H _{ R }$

$\therefore \Delta H$ is always negative for exothermic reactions.

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