What conclusion can be draw about the heat of fusion of water from the heating curve?
a) the potential energy of fusion represents a greater change of stored energy.
b) liquid water is stabilized by strong intermolecular forces between the molecules.
c) the kinetic energy and the entropy of the water molecules increases through fusion.
d) the temperature increase converts potential energy to kinetic energy during fusion. what conclusion can be draw about the heat of fusion of water from the heating curve?

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?