MCQ
A chemical reaction cannot occur at all if
  • $\Delta H$ value is positive and $\Delta S$ value is negative
  • B
    $\Delta H$ value is negative and $\Delta S$ value is positive
  • C
    $\Delta H$ and $\Delta S$ values are negative but $\Delta H\,>\,T\Delta S$
  • D
    $\Delta H$ and $\Delta S$ values are positive but $\Delta H\,>\,T\Delta S$

Answer

Correct option: A.
$\Delta H$ value is positive and $\Delta S$ value is negative
a

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free