Can anyone explain to me how I got this wrong: Just in case the image doesn't show,

A balloon with a volume of 2.0 L at 25°C is placed in a hot room at 35°C. The pressure on the balloon is constant at 1.0 atm.

1. How does the volume of the balloon change after moving it to the hot room?

My It increases (Correct)

2. What is the final volume of the balloon after it has been placed in the hot room?

My 2.8 L (Incorrect, 2.1)