Which among the following reactions will take | vedclass

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(A) reaction is spontaneous if the standard cell potential $E^\circ_{cell}$ is positive. According to the electrochemical series,a metal with a lower

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$Cu_{(s)} + 2AgNO_{3(aq)} 	o Cu(NO_3)_{2(aq)} + 2Ag_{(s)}$

Vedclass · Answer

(A) reaction is spontaneous if the standard cell potential $E^\circ_{cell}$ is positive. According to the electrochemical series,a metal with a lower (more negative) standard reduction potential can displace a metal with a higher (more positive) standard reduction potential from its salt solution. For option $A$: $E^\circ_{Cu^{2+}/Cu} = +0.34 \ V$ and $E^\circ_{Ag^+/Ag} = +0.80 \ V$. Since $E^\circ_{Cu^{2+}/Cu} Thus,the reaction $Cu_{(s)} + 2AgNO_{3(aq)} 	o Cu(NO_3)_{2(aq)} + 2Ag_{(s)}$ is spontaneous.

Which among the following reactions will take place spontaneously?

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