A 13.3 g sample of water initially at -19.1°C is heated to 114.1°C. How much energy (in kJ) is needed to heat the water? (The density of water is 1 g/mL.) (assume all calculations must be to 3 significant
figures)

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