MCQ
Which of the following statements is true
- A$\Delta E$ is always greater than $\Delta H$
- B$\Delta E$ is always less than $\Delta H$
- ✓$\Delta E$ may be lesser or greater or equal to $\Delta H$
- D$\Delta E$ is always proportional to$\Delta H$
$\because \Delta H = \Delta E + P\Delta V = \Delta E + \Delta nRT.$
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Given : $N -N =159\,kJ\,mol^{-1};\,\,H-H = 436\,kJ\,mol^{-1}$
$N \equiv N = {\text{ }}941{\text{ }}kJ{\text{ }}mo{l^{ - 1}}{\text{ }};{\text{ }}N-H{\text{ }} = {\text{ }}398{\text{ }}kJ{\text{ }}mo{l^{ - 1}}$ .....$kJ\,mol^{-1}$
| List $I$ | List $II$ |
| Compound | Structure |
| $(A)$ $ClF_3$ | Square planar |
| $(B)$ $PCl_5$ | Tetrahedral |
| $(C)$ $IF_5$ | Trigonal bipyramidal |
| $(D)$ $CCl_4$ | Square pyramidal |
| $(E)$ $XeF_4$ | $T-$ shaped |
Codes
$COC{l_2}\left( g \right) \rightleftharpoons CO\left( g \right) + C{l_2}$
is an endothermic process. Which of the following will increase the degree of dissociation of $COCl_2$
