According to a Maxwell–Boltzmann probability distribution, how many times greater is the average energy of a particle than its most probable energy? If the temperature of a neutron that is in thermal...

According to a Maxwell–Boltzmann probability distribution, how many times greater is the average energy of a particle than its most probable energy?

If the temperature of a neutron that is in thermal equilibrium with its environment increases by a factor of two, how much does its average energy increase?