What is enthalpy a measure of? a. the heat content of a system. b. the kinetic energy of a system. c. the number of moles of reactant in a system. d. the disorder of a system.

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf   

That depends. cause the owl finished it in one lick