Home
Class 12
CHEMISTRY
A fuel cell generates a standard electro...

A fuel cell generates a standard electrode potential of 0.7 V, involving 2 electrons in its cell reaction. Calculate the standard free energy change for the reaction. `"Given F= 96487 C mol"^(-1)`. 

Text Solution

Verified by Experts

Standard free energy change for the reaction
`DeltaG^(@)=-nFE^(@)`
`"Given : "E^(@)=0.7V, n=2, F="96500 C mol"^(-1)`
`DeltaG^(@)=-2xx96500xx0.7V`
`=-135100 J`
`=-135kJ`
Promotional Banner

Topper's Solved these Questions

  • II PUC CHEMISTRY (P.U. BOARD LATEST MODEL QUESTION PAPER - 3)

    SUNSTAR PUBLICATION|Exercise PART - C|16 Videos

  • II PUC CHEMISTRY (P.U. BOARD LATEST MODEL QUESTION PAPER - 3)

    SUNSTAR PUBLICATION|Exercise PART - D|30 Videos

  • II PUC CHEMISTRY (P.U. BOARD LATEST MODEL QUESTION PAPER - 3)

    SUNSTAR PUBLICATION|Exercise PART - D|30 Videos

  • II PUC CHEMISTRY (P.U. BOARD LATEST MODEL QUESTION PAPER - 2)

    SUNSTAR PUBLICATION|Exercise PART - D|28 Videos

  • II PUC CHEMISTRY (SUPPLEMENTARY EXAM QUESTION PAPER JULY - 2014)

    SUNSTAR PUBLICATION|Exercise PART - D|22 Videos

Similar Questions

Explore conceptually related problems

The standard reduction potential for the reaction Sn^(4+) + 2erarr Sn^(2+) is + 0.15 V . Calculate the free energy change of the reaction.

Equilibrium constant of a reaction is 0.008. Calculate the standard Gibb's energy change at 298 K.

The standard electrode potential for Daniel cell is 1.1 volt. What is the standard Gibbs energy for the reaction ?

Calculate the standard Gibb's energy change for a reaction at 298 K, if its equilibrium constant is 50.

The electrode potential for the Danicell given below is 1.1V. Zn(s)|Zn^(2+)(aq)||Cu^(2+)(aq)|Cu(s) Write overall cell reaction and calculate the standard Gibb's energy for the reaction. [F=96487c//mol] .

Standard free energy change of a reaction is +150 kJ mol^(-1) . Calculate K_(p) at 30^(@)C .

The equilibrium constant of a reaction is 0.008 at 298 K. The standard free energy change of the reaction at the same temperature is :

Calculate the standard emf of the cell having the standard free energy change of the cell reaction is -64.84 kJ for 2 electrons transfer.

The standard emf of galvanic cell involving 3 moles of electrons in its redos reaction is 0.59V. The equilibrium constant for the reaction of the cell is