\(W\,\, = \,\,ZQ\,\, = \,\,\frac{E}{{96500}}\,\,\, \times \,\,\,18\,\, \times \,\,{10^5}\, = \,\,\frac{{18E}}{{96500}}\,\, \times \,\,{10^5}\)
\( = \,\,\frac{{18\,\, \times \,\,35.5}}{{965}}\,\, \times \,\,{10^3}\,\, = \,\,662.2g\)
\(\because \,\,\,NTP\) એ \(71\,\,g\,\,\,C{l_2}\) નું કદ \( = \,\,\,22.4\,\,L\)
\(\because \,\,\,NTP\,\,\) એ \(\,662.2\,\,g\,\,C{l_2}\) નું કદ \( = \,\,\,\frac{{22.4}}{{71}}\,\, \times \,\,662.\,2\,\,\, = \,\,\,208.\,9\,\,L\)
$V^{2+}(aq) + 2e^{-} \rightarrow V$, $E^o = -1.19\,V; $
$Fe^{3+}(aq) + 3e^{-} \rightarrow Fe$, $E^o = -0.04\,V:$
$Au^{3+}(aq) + 3e^{-} \rightarrow Au$, $E^o = + 1.40\,V;$
$Hg^{2+}(aq) + 2e^{-} \rightarrow Hg$, $E^o = + 0.86\,V$
જલીય દ્રાવણમાં $NO^-_{3}$ દ્રારા કયા ધાતુઓના યુગ્મનું ઓક્સિડેશન નથી થતુ?
$(i)\, Cu^{2+} + 2e^- \rightarrow Cu\,,$ $ E^o = 0.337\, V$
$(ii)\, Cu^{2+} + e^- \rightarrow Cu^+\,,$ $ E^o = 0.153\, V$
તો પ્રક્રિયા $Cu^+ + e^- \rightarrow Cu$ માટે $E^o$........... $V$ થશે.
$Z{n^{2 + }}\,(aq)\, + \,2e\, \rightleftharpoons \,Zn\,(s)\,;\, - \,0.762\,V$
$C{r^{3 + }}\,(aq)\, + \,3e\, \rightleftharpoons \,Cr(s)\,;\, - \,0.740\,\,V$
$2{H^ + }\,(aq)\, + \,2e\, \rightleftharpoons \,{H_2}(g)\,;\,\,\,0.00\,\,\,V$
$F{e^{3 + }}\,(aq)\, + \,e\, \rightleftharpoons \,F{e^{2 + }}(aq)\,;\,\,\,0.770\,\,\,V$
નીચેનામાંથી કયો પ્રબળ રીડક્ષન કર્તા છે ?