Question

The standard EMF for the cell reaction,
$$\mathrm{Zn}+\mathrm{Cu}{\phantom{A}}^{2+}⟶\mathrm{Cu}+\mathrm{Zn}{\phantom{A}}^{2+}$$ is 1.1 volt at 25°C.
The EMF for the cell reaction, when 0.1 M Cu²⁺ and 0.1 M Zn²⁺ solutions are used, at 25°C is:

विकल्प

• 1.10 V

• 0.10 V

• −1.10 V

• −0.110 V

Answer 1

1.10 V

Explanation:

Since the concentration of ions is the same hence ${\displaystyle {\text{E}}_{\text{cell}}={\text{E}}_{\text{cell}}^0}$