Compared to ch4,nh3 has:
a) nh3 molecules have stronger intermolecular attractions than ch4 molecules.
b) nh3 molecules take up more volume than ch4 molecules.
c) nh3 molecules have less kinetic energy than ch4 molecules at stp.
d) nh3 molecules have a higher average speed than ch4 molecules at stp
e) nh3 molecules have a lower average speed than ch4 molecules at stp.