- A$\frac{{d\,\ln \,K}}{{dT}} = \Delta {E^*}/RT$
- ✓$\frac{{d\,\ln \,K}}{{dT}} = \Delta {E^*}/R{T^2}$
- C$\frac{{d\,\ln \,K}}{{dT}} = - \Delta {E^*}/R{T^2}$
- D$\frac{{d\,\ln \,K}}{{dT}} = - \Delta {E^*}/RT$
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$2 Al + 3MnO \to Al_2O_3 + 3Mn$
Which of the following is correct? (Atomic weights of $Mn = 55$ and $Al = 27$)
Assertion $(A)$ : The first ionization enthalpy of $3 d$ series elements is more than that of group $2$ metals
Reason $(R)$ : In $3d$ series of elements successive filling of d-orbitals takes place.
In the light of the above statements, choose the correct answer from the options given below :
Given, $\lambda_{\left(\mathrm{Ag}^{+}\right)}^{\circ}=6 \times 10^{-3} \mathrm{Sm}^2 \mathrm{~mol}^{-1}, \lambda_{\left(\mathrm{Br}^{-}\right)}^{\circ}=8 \times 10^{-3} \mathrm{Sm}^2 \mathrm{~mol}^{-1}, \lambda_{\left(\mathrm{NO}_{\mathrm{j}}\right)}^{\circ}=7 \times 10^{-3} \mathrm{Sm}^2 \mathrm{~mol}^{-1}$.
