Which of the following is the correct increas | vedclass

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Question

(C) The enthalpy of vaporization depends on the strength of intermolecular forces. In $PH_3$ and $AsH_3$,the intermolecular forces are primarily weak

Vedclass · Accepted Answer

$PH_3 < AsH_3 < NH_3$

Vedclass · Answer

(C) The enthalpy of vaporization depends on the strength of intermolecular forces. In $PH_3$ and $AsH_3$,the intermolecular forces are primarily weak van der Waals forces,which increase with increasing molecular mass $(PH_3 However,$NH_3$ molecules exhibit strong intermolecular hydrogen bonding. Due to this strong hydrogen bonding,$NH_3$ has a significantly higher enthalpy of vaporization compared to $PH_3$ and $AsH_3$. Therefore,the correct increasing order is $PH_3 < AsH_3 < NH_3$.

Which of the following is the correct increasing order of enthalpy of vaporization for the given hydrides?

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