I believe i have gone wrong at some place in this question i

I believe i have gone wrong at some place in this question i came up with -1 C. It would be helpful to get the steps on how to complete this problem.

Pressure P=250 Kpa =250*10³ pa

Volume V=25 L

1 L=0.001 m³

V=25*0.001 = 0.025 m²

From Ideal gass law

PV=nRT

=>T=PV/nR =(250*10³)*0.025/3*8.314

T=250.58 K

Since the answer is in kelvin

T=250.6 -273.15

T=-22.45 ^oC =-22^oC