Home
Class 12
CHEMISTRY
298 K पर निम्नलिखित विद्युत रासायनिक सेल...

298 K पर निम्नलिखित विद्युत रासायनिक सेल के लिए,
`Pt(s) | H_(2) (g, 1 "bar") | H^(+) (aq, 1 M), E__("cell") = 0.092V`
जब `|| M^(4+) (aq), M^(2+) (aq) | Pt(s)`
`[(M^(2+)(aq))/(M^(4+)(aq))] = 10^(x)`
दिया गया है: `E_(M^(4+) | M^(2+))^(@) = 0.15 V , 2.303 (RT)/F = 0.059 V`
x का मान है

A

`-2`

B

`-1`

C

1

D

2

Text Solution

Verified by Experts

The correct Answer is:
D
एनोड : `H_(2) (s) to 2H^(+) + 2e^(-)`
कैथोड: `Mn^(4+) + 2e^(-) to Mn^(2+)`
__________________________
`Mn^(4+) + H^(2) to Mn^(2+) + 2H^(+)`
`E = E^(@) = 0.151 - 0.059/2 log_(10)(([Mn^(2+)][H^(+)]^(2))/([Mn^(4+)][P_(H_(2))]))`
`0.092 =0.151 - 0.059/2 log_(10)(10^(x))`
`x=2`
Promotional Banner

Similar Questions

Explore conceptually related problems

For the following electrochemical cell at 298K Pt(s)+H_(2)(g,1"bar") |H^(+) (aq,1M)||M^(4+)(aq),M^(2+)(aq)|Pt(s) E_(cell) = 0.092 V when ([M^(2+)(aq)])/([M^(4+)(aq)])=10^(x) Given, E_(M^(4+)//M^(2+))^(@) = 0.151V, 2.303 (RT)/(F) = 0.059 The value of x is-

For the following electrochemical cell at 298 K, pt (s) |H_(2) (g, 1 " bar" )|H^(+) (aq.), M^(2+) (aq.)| Pt (s) E_("cell") = 0.92 V when ([M^(2+) (aq.)])/([M^(4+) (aq.)]) = 10^(x) Given : E_(M^(4+)//M^(2+))^(@) = 0.151 V, 2.303 (RT)/(F) = 0.059V The value of x is :

For the following electrochemical cell at 298 k Pt_(s) H_(g)(1bar)| H^(+)_(1M)||M _(aq)^(4+) , +(aq)^(2+) |Pt_(s)E _(cell) = 0.092V When ([M_(aq)^(2+)])/([M_(aq)^(4+)] )=10^(X) . Given : E_(M^(4+)//M^(2+))^(@) = 0.151 V , 2.303(RT)/(F) = 0.059V ] The value of X is ,