Problem

The specific heat of a metal at low temperatures varies according to

S = aT^3

, where

a

is a constant and

T

is absolute temperature. The heat energy needed to raise unit mass of the metal from temperature

T = 1 \text{ K}

T = 2 \text{ K}

is a.

3a

\frac{15a}{4}

\frac{2a}{3}

\frac{13a}{4}