Homework Help: CHEMISTRY> HELP QUICK! pls

Posted by Lucinda on Saturday, September 4, 2010 at 11:05pm.

Use the given data at 298 K to calculate ΔG° for the reaction
2NO(g) + 2H2(g) → N2(g) + 2H2O(g)
Substance NO(g) H2(g) N2(g) H2O(g)
ΔH°f (kJ/mol) 90 0 0 -242
S°(J/K·mol) 211 131 192 189

a. -270 kJ
b. -630 kJ
c. -3.46 x 104 kJ
d. -667 kJ

CHEMISTRY> HELP QUICK! pls - Gaby, Saturday, September 4, 2010 at 11:08pm
B. -630 kJ
CHEMISTRY> HELP QUICK! pls - Gaby, Saturday, September 4, 2010 at 11:12pm
WELL YOURE WELCOME !!!!!!!!!!!!!!!!GEEZ!
CHEMISTRY> HELP QUICK! pls - Lucinda, Saturday, September 4, 2010 at 11:16pm
gaby can you show me how you did this? i kept getting 333
CHEMISTRY> HELP QUICK! pls - gaby, Sunday, September 5, 2010 at 12:04am
well what do you think youre doing wrong?
CHEMISTRY> HELP QUICK! pls - gaby, Sunday, September 5, 2010 at 12:06am
BTW would you mind helping me with my algebra 1 question cuz i really dont get it?!?!?!?!
CHEMISTRY> HELP QUICK! pls - Lucinda, Sunday, September 5, 2010 at 2:01am
i figured dH to = -664, the dS = -114.
then i use equation>
dG = dH -TdSand i got 333.08 kJ

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