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The standard change in Gibbs energy for the reaction, at 25°C is:
a)
100 kJ
b)
-90 kJ
c)
90 kJ
d)
-100 kJ
Asked by Ranjeetgupta26068 | 19 May, 2019, 22:14: PM
Formula used to find ΔGº
![increment straight G to the power of straight omicron space equals space minus 2.303 space RT space logK](https://images.topperlearning.com/topper/tinymce/cache/7486b31fd410e1191b10c940f4305fed.png)
K for H2O = 10-14/55.6
Solution:
![increment straight G to the power of straight omicron space equals space minus 2.303 space cross times 8.314 space cross times 298 space cross times log open parentheses fraction numerator 10 to the power of negative 14 end exponent over denominator 55.6 end fraction close parentheses
increment straight G to the power of straight omicron space equals space minus 89.84 space kJ space tilde space minus 90 space kJ](https://images.topperlearning.com/topper/tinymce/cache/194419f7183c9ea9e2a0d000f287c91b.png)
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