Verified Solution • 2025–26 Session moderate

QNEET-2016-Ch-1041: NEET 2016 Chemistry - Class 12 NEET-2016-Ch-1041 Solution: The pressure of \(H_2\) required to make the potential of…

The pressure of H2H_2 required to make the potential of H2H_2-electrode zero in pure water at 298 K is 10−10 atm10^{-10}\ \text{atm} 10−4 atm10^{-4}\ \text{atm} 10−14 atm10^{-14}\ \text{atm} 10−12 atm10^{-12}\ \text{atm}

Multiple Choice Options

  • A 10 −- _ 10 atm
  • B 10 −- _ 4 atm
  • C 10 −- _ 14 atm
  • D 10 −- _ 12 atm

Step-by-Step Verified Solution

2H + (aq) + 2e � _ H 2 (g) E cell = E o cell - 0.0591 2 log _ p H 2 [ H + ] 2 _ 0 = 0 - 0.0591 2 log _ p H 2 [ 10 _ 7 ] 2 _ p H 2 [ 10 _ 7 ] 2 = 1 _ P H 2 = 10 �14 atm

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