Question
What is Hess's law? Explain with examples.
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$\text{Sucrose}+\text{H}_2\text{O}\rightleftharpoons\text{Glucose}+\text{Fructose}$
Equilibrium constant Kc for the reaction is 2 × 1013 at 300K. Calculate $\Delta\text{G}^\circ\text{ at }300\text{K.}(\log 2=0.3010)$
| $\lambda( nm )$ | 500 | 450 | 400 |
| $v \times 10^{-8}\left(cm s ^{-1}\right)$ | 2.55 | 4.35 | 5.35 |