Ideal gas law problem

[rasen58]

When tripling the volume of a given weight of gas at 27 C, keeping the pressure constant, the temperature must be raised to?

 

I used

V1/T1 = V2/T2

and set V1 to 1 L

 

1/27 = 3/T2

T2 = 81 C.

 

But the answer says it's 627 C. Is it wrong?

[Robittybob1]

When tripling the volume of a given weight of gas at 27 C, keeping the pressure constant, the temperature must be raised to?

 

I used

V1/T1 = V2/T2

and set V1 to 1 L

 

1/27 = 3/T2

T2 = 81 C.

 

But the answer says it's 627 C. Is it wrong?

Don't you have to work in Kelvin?

[studiot]

+1bob, this is oft forgot.

[rasen58]

Oh thanks, forgot about that, it works now