Two rigid containers at the same temperature and pressure. One had volume of 500L and the other 250L...?

Question

(they are full of gas)

Which answer is correct?
a. The first container contains twice as many gas molecules as the second.
b. The smaller container will have twice the pressure as that of the larger container as the temperature increases.
c. The smaller tank will develop a pressure change twice as quickly as the larger.
d. These choices are all correct.

Answer 1

a only.