Question

If the $K_p$ for the equilibrium, $M.5H_2O(s) \rightleftharpoons M.3H_2O(s) + 2H_2O(g)$ is 1 × 10⁻⁴. Then M.5H₂O(s) will show efflorescence when it is exposed to an atmosphere where vapour pressure of water is –
(a) more than 10⁻² atm
(b) below 10⁻² atm
(c) more than 10⁻⁴ atm
(d) below 10⁻⁴ atm

Answer 1

$<b>$
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$\mathbb{NICE...QUESTION}$

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If the $K_p$ for the equilibrium, $M.5H_2O(s) \rightleftharpoons M.3H_2O(s) + 2H_2O(g)$ is 1 × 10⁻⁴. Then M.5H₂O(s) will show efflorescence when it is exposed to an atmosphere where vapour pressure of water is –
(a) more than 10⁻² atm
(b) below 10⁻² atm
(c) more than 10⁻⁴ atm
(d) below 10⁻⁴ atm

→ [B]


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Answer 2

$\huge\red{Answer}$

(b) below 10⁻² atm

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