Question: What will happen if we heat a 15 L sample of gas from 250 K to 290 K under constant pres sure condition?
a. The volume of gas increases.
b. The number of moles of gas decreases.
c. The volume of gas decreases.
d. The number of moles of gas increases.
  Edit

Answer: Charles’s law states that,the volume of a sample of gas is directly
proportional to the absolute temperature when pressure remains constant.
So for this problem, volume of gas will increase.  Edit