Saved Bookmarks
| 1. |
X(s) + 2Y+(aq) X2-(aq) + 2Y(s) (E0cell = 0.059 V)What is the value of ‘K’ for above reaction? |
|
Answer» Answer: Given that, Emf of cell = 0.059 V The equation is X(s)+2Y+(aq)\rightleftharpoons X_{2}+(aq)+2YX(s)+2Y+(aq)⇌X 2
+(aq)+2Y Here, N = 1 We need to CALCULATE the value of CONSTANT K Using formula of emf of the cell E=\dfrac{2.303 RT}{nF}\LOG(K)E= nF 2.303RT
log(K) E=\dfrac{0.0591}{n}\log(K)E= n 0.0591
log(K) Where, E = emf of the cell k = constant Put the value into the formula 0.059=\dfrac{0.0591}{1}\log(K)0.059= 1 0.0591
log(K) log(K)=\dfrac{0.059}{0.0591}log(K)= 0.0591 0.059
k=e^{1}k=e 1
k = 2.7\approx 3k=2.7≈3 Hence, The value of constant K is 3. |
|