n a closed system (N is constant) , a gas is taken from a pressure of 3.5atm to 1.75atm with the volume remaining constant (Isochoric) at 4.1L. In a second step, the gas expands at constant pressure (Isobaric) from a volume of 4.1L to 8.2L where the temperature reaches its original value. Show the process on a P vs. V What is the percentage change in Thermal Energy in the first step of the process
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Ответ:
Explanation:
The balanced chemical equation will be:
Here Ag undergoes oxidation by loss of electrons, thus act as anode. Nickel undergoes reduction by gain of electrons and thus act as cathode.
Where both are standard reduction potentials.
The standard emf of a cell is related to Gibbs free energy by following relation:
= gibbs free energy
n= no of electrons gained or lost =?
F= faraday's constant
= standard emf
The Gibbs free energy is related to equilibrium constant by following relation:
R = gas constant = 8.314 J/Kmol
T = temperature in kelvin =
K = equilibrium constant
Thus the value of the equilibrium constant at is