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सेलों की 298K पर नर्न्स्ट समिकरारन एव EMF लिखिय --- `Sn_((s))|Sn^(2+)(0*050M)||H^+(0*20M)|H_(2(g))("1 bar")|Pt_((s))`

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दिनोद अभिक्रिया --- `Sn_((s))to Sn^(2+)(0*05M)+2e^(-)`
केथोड अभिक्रिया--- `2H^+(0*02M)+2e^(-)toH_(2(l))`
नेट सेल अभिक्रिया --- `Sn_((s))+2H^(+)(0*02M)toSn^(2+)(0*05M)+H_(2(l))`
नरंसत समीकरण के अनुसार,
`EMF =E_("cell")^@-(0*0591)/2"log"([Sn^(2+)]P_(H_(2))`
`=(E_("cathode")^@-E_("anode")^@)-0*0295"log"(0*05xx1)/((0*02)^2)`
`:." EMF "=0*14V-0*0295" log "125`

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