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I need help understanding this chemistry problem asap. It is due tonight.?

I need help understanding this chemistry problem asap. It is due tonight.? - Chemistry Forum

I need help understanding this chemistry problem asap. It is due tonight.? - Chemistry Forum. Discuss chemical reactions, chemistry.


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Old 10-24-2008, 09:19 PM
Pipette Filler
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Default I need help understanding this chemistry problem asap. It is due tonight.?



Consider the equation below. CuS (s) + H2 (g) = Cu (s) + H2S (g)
?Gof = -12.8(CuS) -8.02 kcal(H2S)
?Hof = -12.7(CuS) -4.93 kcal(H2S)

Given the following data at 298 K and 1 atm, and assuming that both ?Ho and ?So are temperature independent, the value of ?Go at 525C is ___, which indicates that at that temperature the reaction is ___.

The answers I can choose from are...
0.21 kcal, non-spontaneous
0.056 kcal, non-spontaneous
-0.21 kcal, spontaneous
-0.056 kcal, spontaneous
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