Recent content by sara lopez

Homework Statement Calculate the entropy changes of the system and the surroundings if the initial and final states are the same as in part a ( part a= 2.000 mol of neon (assume ideal with CV,m _ 3R/2) is expanded isothermally at 298.15K from 2.000 atm pressure to 1.000 atm pressure and is...

yes, you are right, thanks for the correction

Thanks for the help :D

n= 100, T2= 15771,3

sorry, now the temperature 2 = 15304,4 K, isn't high?

P2 is -48,354 Bar

because i have for a =1,358 bar (m^3/kmol)^2 and b= 0,0364 m^3/kmol

bar*m^3 and then pass them to BTU

and what're the units for this work?

T1 = https://www.physicsforums.com/file://localhost/Users/Carolina/Library/Group%20Containers/UBF8T346G9.Office/msoclip1/01/clip_image001.png T1 = - 175,3 K

i don`t have the number of moles, that's why I was thinking of use n=1

I don`t have temperature, What else can I do?

No, but I can assume that

But I can take n=1

Yes, it was my mistake