MCQ
When an electron moves from $L-$ shell to $M-$ shell, then it will be accompanied by :
- ✓Energy absorption
- BEnergy emission
- Cgamma-ray emission
- Dgamma-ray absorption
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$CaCO_3( s) \rightarrow CaO(s) + CO_2(g)$
the values of $\Delta H^o$ and $\Delta S^o$ are $+ 179.1\, kJ\, mol^{-1}$ and $160.2\, J/K$ respectively at $298\, K$ and $1\,bar.$ Assuming that $\Delta H^o$ and $\Delta S^o$ do not change with temperature, temperature above which conversion of lime stone to lime will be spontaneous is ............. $\mathrm{K}$