Question

In the hydrogenation of double bonds, a catalyst is needed. in the last step, the reactants must escape from the surface into the gas phase. this step is known as ________.

Answer 1

The step in which reactant escape from the surface into the gas phase is known as desorption

Desorption is a phenomenon whereby a substance is released from or through a surface. One substance is released from another either from the surface or through the surface. Desorption can occur when the system is in the state of sorption equilibrium between bulk (fluid) and adsorbing surface.( boundary separating two fluids)
uds )