MAHE Manipal B.Sc Nursing 2025
ApplyAccorded Institution of Eminence by MoE, Govt. of India | NAAC A++ Grade | Ranked #4 India by NIRF 2024
Feasibility and Gibbs Free Energy of Reaction is considered one the most difficult concept.
27 Questions around this concept.
If the for a given reaction has a negative value, which of the following gives the correct relationships for the values of
and Keq?
For the reduction of silver ions with copper metal, the standard cell potential was found to be +0.46 V at 25°C. The value of standard Gibbs energy, will be (F=96500 C mol-1)
The electrode potentials for
and
are +0.15 V and +0.50, respectively. The value of will be:
The values of for the reaction,
are 170 kJ and 170
, respectively. The reaction will be spontaneous at
Given
,
,
Among the following, the strongest reducing agent is :
Given below are two statements: one is labeled as Assertion A and the other is labeled as Reason R :
Assertion A: In equation , value of
depends on n.
Reasons R : is an intensive property and
is an extensive property.
In the light of the above statements, choose the correct answer from the options given below :
Let n faraday charge be taken out of a cell of emf E, then work done by the cell will be calculated as:
Work = Charge × Potential
Work done by the cell is equal to the decrease in the free energy.
Similarly, maximum obtainable work from the cell at standard condition will be:
Variation of E.M.F. (Ecell) with Temperature
The temperature coefficient of e.m.f. of the cell is written as:
Enthalpy Change: From above equation, we have:
Thus, enthalpy(ΔH) is given as:
Entropy change: For entropy change we have:
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