The energy of a particle in a box with equal sides (a) can be expressed h2 as: e = 8ma n +n) what is the degeneracy of the 2nd lowest energy level? 2 what is the energy difference (ae) between the 1st and 2"d energy level for an electron in a box with sides 1.0 nm.

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)