Possible but it would be difficult. The physical installation would be difficult on it's own, then you would have to hope for BIOS support. RAM/OS/SSD would be a more realistic upgrade. (Not all, but one, depending on your current specs)
Generally, in addition to the mechanical and electronic difficulties, it just isn't cost effective to upgrade a laptop CPU. The cost of a new CPU represents a significant portion of the cost of a new computer.