J.R. S. answered 09/29/20
Ph.D. University Professor with 10+ years Tutoring Experience
Assuming the pressure remains constant we can use Charles' Law ... V1/T1 = V2/T2
V1 = initial volume = 1.00 L
T1 = initial temperature = 250 K
V2 = final volume = ?
T2 = final temperature = 1500 K
1.00 L/250K = V2/1500K
V2 = 6.00 L
(Note that the temperature increased so to keep the pressure the same, the volume must also increase)