The diatomic molecule H2 has an extremely low boiling point because only weak Vander waals forces are present between the atoms of hydrogen molecule. This weak inter-molecular forces are easily broken when heat is apply resulting in low boiling point.
I think the most appropriate answer is B !
as electrolysis is non spontaneous ! and it is also a redox rkn !
Answer: The correct answer is option B.
Explanation:
Average kinetic energy of the gas molecule is given by relation:
![E_K=\frac{3}{2}\frac{R}{N_A}\times T](https://tex.z-dn.net/?f=E_K%3D%5Cfrac%7B3%7D%7B2%7D%5Cfrac%7BR%7D%7BN_A%7D%5Ctimes%20T)
= Avogadro Number
T = Temperature of the gas in Kelvins.
R = Universal gas constant
![E_K\propto T](https://tex.z-dn.net/?f=E_K%5Cpropto%20T)
With increase in temperature the kinetic energy of the gas molecule increases and vice-versa.
So, according to the question the explanation for a drop in temperature of the gas is decrease in average kinetic energy of the gas molecules.
Hence, the correct answer is option B.