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Hydrogen Gas Is a Non-Polluting Fuel \to 2 H2(g)+ O2(g)
Predict the Signs Of

Question 22

Multiple Choice

Hydrogen gas is a non-polluting fuel.Hydrogen gas may be prepared by electrolysis of water.2 H2O(  Hydrogen gas is a non-polluting fuel.Hydrogen gas may be prepared by electrolysis of water.2 H<sub>2</sub>O(   )  \to  2 H<sub>2</sub>(g) + O<sub>2</sub>(g)  Predict the signs of  \Delta <sub>r</sub>H and  \Delta <sub>r</sub>S for the production of hydrogen gas by electrolysis of water. A)  ( \Delta <sub>r</sub>H)  > 0 and  \Delta <sub>r</sub>S > 0 B)  ( \Delta <sub>r</sub>H)  < 0 and  \Delta <sub>r</sub>S > 0 C)  ( \Delta <sub>r</sub>H)  > 0 and  \Delta <sub>r</sub>S < 0 D)  ( \Delta <sub>r</sub>H)  < 0 and  \Delta <sub>r</sub>S < 0 E)  ( \Delta <sub>r</sub>H)  = 0 and  \Delta <sub>r</sub>S < 0 ) \to 2 H2(g) + O2(g)
Predict the signs of Δ\Delta rH and Δ\Delta rS for the production of hydrogen gas by electrolysis of water.


A) ( Δ\Delta rH) > 0 and Δ\Delta rS > 0
B) ( Δ\Delta rH) < 0 and Δ\Delta rS > 0
C) ( Δ\Delta rH) > 0 and Δ\Delta rS < 0
D) ( Δ\Delta rH) < 0 and Δ\Delta rS < 0
E) ( Δ\Delta rH) = 0 and Δ\Delta rS < 0

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