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Chemistry
What pressure of H2 would be required to make emf of the hydrogen electrode zero in water at 25°C ?
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Q. What pressure of $ H_2 $ would be required to make emf of the hydrogen electrode zero in water at $ 25^{\circ}C $ ?
AMU
AMU 2015
Electrochemistry
A
$ 10^{-7}\,atm $
9%
B
$ 10^{-14}\,atm $
20%
C
$ 1 \,atm $
64%
D
$ 0.5 \,atm $
7%
Solution:
$1$ atm pressure of $H_2$ would be required to make emf of the hydrogen electrode zero in water at $25^{\circ}C$.