Answer
The correct answer is:
(a) $V_0$
Work Step by Step
We can find an expression for the volume:
$PV = nRT$
$V = \frac{nRT}{P}$
We can write the expression for the original volume:
$V_0 = \frac{nRT_0}{P_0}$
We can find the new volume:
$V' = \frac{nR(3T_0)}{(3P_0)}$
$V' = \frac{nRT_0}{P_0}$
$V' = V_0$
The correct answer is:
(a) $V_0$