A 256.6 mL sample of carbon dioxide was heated to 375 K. If the volume of the carbon dioxide sample at 375K is 505.9mL, what was its temperature at 256.6 mL?

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

the answer is d. 74.02