Chemistry - Surface Chemistry Question with Solution | TestHub

Select the set having correct statements pertaining to the adsorption of a gas on a solid surface
$\left(1\right)$Physisorption may transform into chemisorptions at high temperature
$\left(2\right)$Chemisorption is more exothermic than physisorption, however it is very slow due to higher energy of activation
$\left(3\right)$Adsorption is always exothermic
$\left(4\right)$Physiosorption increases with increasing temperature but chemisorptions decreases with increasing temperature