Home
Class 12
CHEMISTRY
Pt |{:((H(2))),(1atm):}:| pH = 2:|:|:pH ...

`Pt |{:((H_(2))),(1atm):}:| pH = 2:|:|:pH =3 |:{:((H_(2))Pt),(1atm):}:|`. The cell reaction for the given cell is:-

A

spontaneous

B

non-spontaneous

C

equilibrium

D

none is correct

Text Solution

Verified by Experts

The correct Answer is:
B

`E_("cell")=0.0591`
`(P_(H_(1))-P_(H_(2)))=0.0591(2-3)-0.0591`
= non-spontaneous
Promotional Banner

Similar Questions

Explore conceptually related problems

Consider the cell |{:(H_(2)(Pt)),(1atm):} :|: {:(H_(3)O^(+)(aq)),(pH =5.5):}:||{:(Ag^(+)),(xM):}:|Ag . The measured EMF of the cell is 1.023 V . What is the value of x ? E_(Ag^(+),Ag)^(@) +0.799 V.[T = 25^(@)C]

The cell Pt(H_(2))(1atm) |H^(+) (pH =?) T^(-) (a=1)AgI(s), Ag has emf, E_(298KK) =0 . The electrode potaneial for the reaction AgI +e^(-) rarr Ag + I^(Theta) is -0.151 volt. Calculate the pH value:-

Pt(H_(2))(p_(1))|H^(o+)(1M)|(H_(2))(p_(2)),Pt cell reaction will be exergonic if

At 25^(@)C, DeltaH_(f)(H_(2)O,l) =- 56700 J//mol and energy of ionization of H_(2)O(l) = 19050J//mol . What will be the reversible EMF at 25^(@)C of the cell, Pt|H_(2)(g) (1atm) |H^(+) || OH^(-) |O_(2)(g) (1atm)|Pt , if at 26^(@)C the emf increase by 0.001158V .

Determine at 298 for cell: Pt|Q, QH_(2), H^(+) ||1M KCI |Hg_(2)CI_(2)|Hg(l)|Pt (a) It's emf when pH = 5.0 (b) the pH when E_(cell) = 0 (c) the positive electrode when pH = 7.5 given E_(RP(RHS))^(@) = 0.28, E_(RP(LHS))^(@) = 0.699

For the fuel cell reaction 2H_(2)(g) +O_(2)(g) rarr 2H_(2)O(l), Deta_(f)H_(298)^(@) (H_(2)O,l) =- 285.5 kJ//mol What is Delta_(298)^(@) for the given fuel cell reaction? Given: O_(2)(g) +4H^(+)(aQ) +4e^(-) rarr 2H_(2)O(l) E^(@) = 1.23 V

The cell Pt|H_(2)(g) (1atm)|H^(+), pH = x || Normal calomal electrode has EMF of 0.64 volt at 25^(@)C . The standard reduction potential of normal calomal electrode is 0.28V . What is the pH of solution in anodic compartment. Take (2.303RT)/(F) = 0.06 at 298K .

The e.m.f of the following cell Ni(s)//NiSO_(4)(1.0M) ||H^(+)(1.0M)|H_(2)(1atm), Pt at 25^(@)C is 0.236V . The electrical energy which can be product is

The cell Pt, H_(2) (1atm) H^(+) (pH =x)| Normal calomel Electrode has an EMF of 0.67V at 25^(@)C .Calculate the pH of the solution. The oxidation potential of the calomel electrode on hydrogen scale is -0.28V .