MCQ
Europium is
- A$s-$block element
- B$p-$block element
- C$d-$block element
- ✓$f-$block element
$Eu = [Xe]\,4{f^7}6{s^2}$
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$2KCl{O_4}(s) \rightleftharpoons 2KCl(s) + 3{O_2}(g)$
If $\Delta {H^o} = 25\,kcal/mol$ and $\Delta {S^o} = 50\,cal/K$, at what temperature equilibrium will be established in the container. (Ignore variation of $\Delta {H^o}$ and $\Delta {S^o}$ with temperature.)......$K$

