The temperature coefficient of a cell whose operation is based on the reaction `Pb(s)+HgCl_2(aq)toPbCl_2(aq)+Hg(l)` is : `((dE)/(dT))_P=1.5xx10^(-4)VK^(-1)` at 298 K The change in entropy (in J/k mol) during the operation is :
A
8627
B
57.9
C
28.95
D
14.475
Text Solution
Verified by Experts
The correct Answer is:
C
Topper's Solved these Questions
ELECTROCHEMISTRY
NARENDRA AWASTHI|Exercise Level 1 (Q.1 To Q.30)|1 Videos
ELECTROCHEMISTRY
NARENDRA AWASTHI|Exercise Level 1 (Q.91 To Q.120)|1 Videos
DILUTE SOLUTION
NARENDRA AWASTHI|Exercise Level 3 - Match The Column|1 Videos
The temperature coefficient of a reaction is 2.5 . If its rate constant at T_(1)K is 2.5xx10^(-3)s^(-1) , the rate constant at T_(2)K in s^(-1) is (T_(2)=10+T_(1))
The temperature coefficient of a reaction is 2.5 . If its rate constant at T_(1)K is 2.5xx10^(-3)s^(-1) , the rate constant at T_(2)K in s^(-1) is (T_(2)gtT_(1))
For the reaction , N_(2)+3H_(2) to 2NH_(3), "if" (d[NH_(3)])/(dt)=2xx10^(-4)"mol"L^(-1)s^(-1), the value of (-d[H_(2)])/(dt) would be
The equilibrium constant of the reaction Cu_((s)) + 2Ag_((aq))^(+) iff Cu_((aq))^(+2) + 2Ag_((s)) , " is " x xx 10^(15) , 'x' is ( E^(@) = 0.46 V at 298 K )
The initial concentratin of N_(2)O_(5) in the following first order reaction N_(2)O_(5)(g) to 2NO_(2)(g)+(1)/(2O_(2))(g) was 1.24 xx10^(-2) mol L^(-1) at 318K. The concentration of N_(2)O_(5) after 60 minutes was 0.20xx10^(-2) mol L^(-1). Calculate the rate constant of the reaction at 138 K.
The standard e.m.f. for the cell reaction, 2Cu^(+)(aq) to Cu(s) + Cu^(2+)(aq) is + 0.36V at 298 K. The equilibrium constant of the reaction is
The value of coefficient of volume expansion of glycerine is 5xx10^(-4)K^(-1) . The fractional change in the density of glycerine for a rise of 40^(@)C in its temperature is
The value of K_(p) for the reaction 2H_(2)S(g) hArr 2H_(2)(g) +S_(2)(g) is 1.2 xx 10^(-2) at 1065^(circ)C . The value of K, for this reaction is