MCQ
For the reaction$PC{l_5}(g) \to PC{l_3}(g) + C{l_2}(g)$
- A$\Delta H = \Delta E$
- ✓$\Delta H > \Delta E$
- C$\Delta H < \Delta E$
- DNone of these
✓
Answer
Correct option: B.
$\Delta H > \Delta E$
(b)$PC{l_5}(g) \to PC{l_3}(g) + C{l_2}(g)$
For this reaction $\Delta ng = 2 - 1 = 1$
$\Delta ng$ is positive, i.e., there is an increase in the number of gaseous moles then $\Delta H > \Delta E$
For this reaction $\Delta ng = 2 - 1 = 1$
$\Delta ng$ is positive, i.e., there is an increase in the number of gaseous moles then $\Delta H > \Delta E$
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