Question

A gas has a pressure of 2.0 atm. If the temperature decreases from 250K to 125K and the volume remains constant, what will be the resulting pressure?

Answer 1

Hey there,

We need to remember to use the P1/T1 = P2/T2  method.

203 kPa ÷ 273 K = P2 ÷ 323 K 

V1/T1 = V2/T2. Convert your temps to Kelvin, plug in and solve for V2. 

Your correct answer is $\boxed{P2 = 240 kPa}$

~Jurgen

Answer 2

203 kPa ÷ 273 K = P2 ÷ 323 K 

V1/T1 = V2/T2. then make it Kelvin and plug it