Friday
October 24, 2014

Homework Help: DrBob222 PLEASE HELP!

Posted by Leila on Saturday, March 17, 2012 at 3:31pm.

I posted this question already but you never replied back :(

Consider the following reaction at 298 K:
C(graphite) +2Cl2 (g) -----> CCl4(l)

Calculate the following quantities.

Delta H: -139 kJ/mol

deltaS(sys)=? J/mol*K
deltaS(surr)=? J/mol*K
deltaS(univ)=? J/mol*K


My answer is:
deltaS(sys)=-253.3J/mol*K
deltaS(surr)=466.4 J/mol*K
deltaS(univ)=231.4 J/mol*K

Delta (surr) and (univ) are correct. But delta (sys) is wrong...please help thanks!

chemistry - DrBob222, Friday, March 16, 2012 at 11:38pm

How did you calculate the dS sys? What values did you use?

chemistry - Leila, Saturday, March 17, 2012 at 2:40pm

Change in Hf(kJ/mol) Change in G Change in S

C(graphite) 0 0 5.7
Cl2 0 0 223.1
CCl4 -139 -68.6 214.4

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

DrBob222 - I know I posted this but you didn't answer! Please help!!!! Consider ...
chemistry - Consider the following reaction at 298 K: C(graphite) +2Cl2 (g...
chemistry - Consider the following reaction at 298 K: C(graphite) +2Cl2 (g...
Chemistry - Consider the reaction CH4+ 2Cl2=CCl4. If .33 moles of CH4 is reacted...
~Chem - I was looing over this question and the answer I got was not correct, I ...
gen chem - what would Qc be if the pressure of the container decreased by a ...
Chemistry - How many molecules of Cl2 would be formed from the reaction mixture ...
chemsitry - hi I need help with this question please. 1. consider the ...
DrBob222 help me!! - Please I posted a chemistry question but I havent gotten ...
chemistry - Consider the following reaction: 3C(s) + 4H2(g) -> C3H8(g); DH...

Search
Members