Respuesta :

Answer:

The initial pressure was 852.27 torr.

Explanation:

Given that,

Initial temperature, T = 315 K

Final temperature, T' = 231 K

Final pressure, P' = 625 torr

We need to find the initial pressure of the gas. We know that, the relation between pressure and temperature is given by :

[tex]\dfrac{P}{P'}=\dfrac{T}{T'}\\\\P=\dfrac{P'T}{T'}\\\\P=\dfrac{625\times 315}{231}\\\\P=852.27\ torr[/tex]

So, the initial pressure was 852.27 torr.