Answer:
To calculate the final volume, we can use the following formula:
V2 = (T2/T1) * V1
where V1 is the initial volume, T1 is the initial temperature, V2 is the final volume, and T2 is the final temperature.
Plugging in the given values, we get:
V2 = (300 K/200 K) * 5.31 L
V2 = 7.965 L
Therefore, the final volume of the ideal gas is 7.965 L when heated from 200 K to 300 K at constant pressure.