[billsauce]

The figure shows a PV diagram for 2.69 mole of oxygen gas in a sealed container. The temperature of state 1 is 21 C. Pressure is Pi. What is T3 and T4?

my attempt at solving the solution:
T3 - P1V1/T1 = P3V3/T3
(1Pi)(.100l)/294K = (1.5Pi)(.05l)/T2
T2 = 220.5K - 273 = 52.5K

T4 - V3/T3 = V4/T4
(.05l)/(220.5K) = (.150l)/(T4)
T4 = 661.5K = 388.5C

{MOD Edit: embed image}

[billnotgatez]

your link is not working
maybe it is truncated in some way
see the 3 periods after the teys and before the tml

Edit
The original post was fixed

[billnotgatez]

I do not think you have the correct answers
but I have to step away and can not figure out quickly your formula
could you rewrite the formula to be in terms of T3 =  etc
and T4 = etc

When I come back I will look again

[billsauce]

T3 = P3V3T1/P1V1, assume P1 = 1, P3 = 1.5

t3 = (1.5)(.05l)(294K)/(1)(.1l) = 220.5k

[billnotgatez]

That is the same answer I get
do you want me to expand this topic or do you think you have it

[billsauce]

no i think got it. so you got 220.5K which is -52 C, and then t4 was 388.5C?

[billnotgatez]

Yes I got the same answers
oops I had quickly looked at your first post and accepted the 52.5K as the answer you gave but it was just a typo and should have been -52.5C
And the T2 instead of the T3 typo caught me off guard as well


To be honest I always look at it in terms of K

My apologize for being too hasty

[billsauce]

oops sorry my fault i rushed but thanks for the help.