Home
Class 12
CHEMISTRY
The pressure of H(2) required to make th...

The pressure of `H_(2)` required to make the potential of `H_(2)` -electrode zero in pure water at `50^(@)`C is :-

A

`10^(-14)`

B

`10^(-7)`

C

`10^(+14)`

D

`10^(+7)`

Text Solution

Verified by Experts

The correct Answer is:
A
`2H^(+)(aq)+2e^(-)toH_(2)(g)`
`E=E^(@)-(2.303xx8.314xx323)/(2xx96500)"log"(P_(H2))/([H^(+)]^(2))`
`O=O-(2.303xx8.314xx323)/(2xx96500)"log"(P_(H2))/([H^(+)]^(2))`
`(P_(H2))/10^(-14)=1`
`pH_(2)=10^(-14)atm`
Promotional Banner

Topper's Solved these Questions

  • CHEMISTRY AT A GLANCE

    ALLEN|Exercise INORGANIC CHEMISTRY|300 Videos

  • CHEMISTRY AT A GLANCE

    ALLEN|Exercise ORGANIC CHEMISTRY|483 Videos

  • Chemical Equilibrium

    ALLEN|Exercise All Questions|24 Videos

  • ELECTROCHEMISTRY

    ALLEN|Exercise EXERCISE -05 [B]|38 Videos

Similar Questions

Explore conceptually related problems

The pressure of H_(2) required to make the potential of H_(2)- electrode zero in pure water at 289K is :

The pressure of H_(2) required to make the potential of H_(2^(-)) electrode zeno in pure water at 298 K is

What pressure of H_2 would be required to make emf of the hydrogen electrode zero in pure water at 25^(@)C ?