gay lussacs law?

Question

a glass laboratory flask is filled w/ gas at 25 'C and 0.95 atm pressure, sealed, and then heated to 117'C. What is the pressure inside the flask?

a ballon has a volume of 43.0 L at 20'C. What is the volume at -5'C?

Answer 1

On the link I send you, you will found exercises

p1T2 =p2 T1
where T = t (celsius+273) here T1 = 298 , T2 = 390

p2 = 0.95*390/298 =1.24 atm

2) same T1 = 298 T2 = 268
V1 T1 = V2T2

V2 = V1T2/T1 = 43*268/298=38.7 l