The problem gives two temperature and a constant pressure and asks for the resulting volume. The problem is an application of Charles' law. Assuming ideal gas law equation is also applicable, [tex] \frac{ V_{1} }{ T_{1} } [/tex]=[tex] \frac{ V_{2} }{ T_{2} } [/tex]. Substituting volume 1 equals 556 cm3, T1=278 K and T2=231 K, then volume 2 is 462 cm3. Hence, the answer is B.
