Question

Thermal stability of water is much higher than that of h2s why

Answer 1

In Water H2O molecules strongly attract each other through intermoleclular H bonding which is not present in H2S. water molecule is more stabilized due to hydrogen bonding. So the thermal stability of H2O is more.

It is correct answer

Answer 2

Thermal stability of water is much higher than that of $H_2S$ because of presence of hydrogen bonding in $H_2O$

Explanation:

$H_2O$ has higher thermal stability than $H_2S$ as $H_2O$ molecules are bonded by strong hydrogen bonding present between the hydrogen atom and a highly electronegative oxygen atom.

In $H_2S$, the hydrogen bonding can not be formed as sulphur is not that electronegative and thus decomposes at lower temperatures.

Learn more about hydrogen bonding

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