The molar heat capacity of copper is adequately given by the equation Cp = 4.7310-5 * T3 (J/molK). What is the absolute entropy of copper at 20K?
a.) 2.410-6 J/molK
b.) 0.019 J/mol*K
c.) 0.13 J/mol*K
d.) 1.9 J/mol*K