Celsius to Kelvin Conversion: Solving for T2

[gracy]

Homework Statement

At constant volume and number of moles T1/T2=P1/P2
As per ideal gas equation
So given data is T1=27 degree celcius
P1=80 Cm ,P2=120 Cm T2=?

Homework Equations

T2=P2/P1 multiplied T1

The Attempt at a Solution

:120 cm/80cm multiplied by 27 degree celcius
=40.5 degree celcius
It is wrong because if it is done for klelvin

120 cm/80cm multiplied by (27+273.15)[/B]
T2=450.225 K
This 450.225 K is when converted into celcius it gives 177.075 degree celcius
Thus T2=450.225 K=177.075 degree celcius "≠"40.5 degree celcius
where I am wrong?

 

[Chestermiller]

The 177C is correct and the 40.5C is wrong. The ideal gas law only works with Kelvin temperature and is not supposed to work with Celsius temperature.

Chet

 

[NascentOxygen]

So given data is T1=27 degree celcius

It seems that the expected answer was determined as though the data was already in Kelvin. Is there a possibility that you mistook it for Celcius?

If not mistaken, then your answer appears correct.

 

[gracy]

It seems that the expected answer was determined as though the data was already in Kelvin. Is there a possibility that you mistook it for Celcius?

If not mistaken, then your answer appears correct.

I did not understand.