Sulfur Dioxide (SO2) in the atmosphere is the main cause of acid rain. The react

Question

Sulfur Dioxide (SO2) in the atmosphere is the main cause of acid rain.

The reaction: SO2 (g) + 2H2S (g) --> 2H2O (g) + 3S(s)

is the basis for one method which has been suggested for the removal of SO2 from smoke stack gas.for this reaction, delta H = -147 kJ, while delta S = -186 J/K.

a) Does delta H favor spontaneity? Y or N

b) Does delta S favor spontaneity? Y or N

c) what is the value of delta G for this reaction at 298K?

d) is this reaction spontaneous at 298K? How do you know?

e) above what temp. will this reaction become non-spontaneous?

f) calculate the value of Kp for this reaction at 25 degrees Celsius.

an answer with a complete solution would be appreciated. thanks

Explanation / Answer

y n g=h-Ts=-91.572 kJ yes spontaneous g is negative at g=o 790.322 K

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