415 L of helium gas at 24 °C and 1.5 atm is compressed into a 25.3 L tank at a pressure of 15.7 atmn. What is the new temperature in Kelvin of the compressed helium gas?​

Ibelieve your answer is true 

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