diff options
Diffstat (limited to '3428/CH15')
29 files changed, 309 insertions, 0 deletions
diff --git a/3428/CH15/EX9.15.1/Ex9_15_1.sce b/3428/CH15/EX9.15.1/Ex9_15_1.sce new file mode 100644 index 000000000..99f5c026d --- /dev/null +++ b/3428/CH15/EX9.15.1/Ex9_15_1.sce @@ -0,0 +1,12 @@ +//Section-9,Example-1,Page no.-E.5 +//To calculate the potential of the electrode at 25 degree celcius. +clc; +C=0.1 //Concentration of solution. +C_96=C*(96/100) //Concentration of Zn^2+ at 96% dissociation. +R=8.314 +T=25+273 //Temperature in Kelvin +E_0=-0.76 +n=2 +F=96500 +E=E_0-(((R*T)/(n*F))*log(1/C_96)) +disp(E,'Potential of electrode(V)') diff --git a/3428/CH15/EX9.15.10/Ex9_15_10.sce b/3428/CH15/EX9.15.10/Ex9_15_10.sce new file mode 100644 index 000000000..51d9e560c --- /dev/null +++ b/3428/CH15/EX9.15.10/Ex9_15_10.sce @@ -0,0 +1,14 @@ +//Section-9,Example-6,Page no.-E.10 +//To calculate the equilibrium constant for the given reduction reaction. +clc; +E0_Ri=-0.21 +E0_Ru=-0.06 +E0=E0_Ri-E0_Ru +n=2 +F=96500 +R=8.314 +T=298 +K=(n*F*E0)/(R*T) +//K_eq=antilog(K) +K_eq=%e^K +disp(K_eq,'equilibrium constant for the reduction reaction') diff --git a/3428/CH15/EX9.15.11/Ex9_15_11.sce b/3428/CH15/EX9.15.11/Ex9_15_11.sce new file mode 100644 index 000000000..bd0ecda0a --- /dev/null +++ b/3428/CH15/EX9.15.11/Ex9_15_11.sce @@ -0,0 +1,7 @@ +//Section-9,Example-1,Page no.-E.13 +//To find the emf of the cell. +clc; +E0_cathode=0.78 +E0_anode=-0.40 +E0=E0_cathode-E0_anode +disp(E0,'Emf of the cell') diff --git a/3428/CH15/EX9.15.12/Ex9_15_12.sce b/3428/CH15/EX9.15.12/Ex9_15_12.sce new file mode 100644 index 000000000..2acc3570b --- /dev/null +++ b/3428/CH15/EX9.15.12/Ex9_15_12.sce @@ -0,0 +1,7 @@ +//Section-9,Example-3,Page no.-E.13 +//To calculate E0 cell for the given cell. +clc; +E0_cathode=0.77 +E0_anode=0.76 +E0=E0_anode+E0_cathode +disp(E0,'Emf of the cell') diff --git a/3428/CH15/EX9.15.13/Ex9_15_13.sce b/3428/CH15/EX9.15.13/Ex9_15_13.sce new file mode 100644 index 000000000..a089b1067 --- /dev/null +++ b/3428/CH15/EX9.15.13/Ex9_15_13.sce @@ -0,0 +1,9 @@ +//Section-9,Example-4,Page no.-E.14 +//To find the potential of Daniel cell. +clc; +C_Zn=1.52 +C_Cu=0.48 +E0_cell=1.10 +n=2 +E_cell=E0_cell-((0.0592/n)*log10(C_Zn/C_Cu)) +disp(E_cell,' potential of Daniel cell') diff --git a/3428/CH15/EX9.15.14/Ex9_15_14.sce b/3428/CH15/EX9.15.14/Ex9_15_14.sce new file mode 100644 index 000000000..f5413a191 --- /dev/null +++ b/3428/CH15/EX9.15.14/Ex9_15_14.sce @@ -0,0 +1,11 @@ +//Section-9,Example-5,Page no.-E.14 +//To determine the number of coulombs delivered by a Daniel cell. +clc; +E_cell=1.00 +E0_cell=1.10 +n=2 +L=10^((E_cell-E0_cell)/(-0.0592/n)) +//L=log(Zn_2+/Cu_2+) and (Zn_2+/Cu_2+)=2399 +Cu_2=2/L +disp(193000,'coulomb of electrons delivered') +//Since all the copper has been consumed,thus 2 mol of electrons has been delivered. diff --git a/3428/CH15/EX9.15.15/Ex9_15_15.sce b/3428/CH15/EX9.15.15/Ex9_15_15.sce new file mode 100644 index 000000000..dedaeb658 --- /dev/null +++ b/3428/CH15/EX9.15.15/Ex9_15_15.sce @@ -0,0 +1,14 @@ +//Section-9,Example-1,Page no.-E.16 +//To calculate dl(G),dl(H) and dl(S). +clc; +E=1.02 +d_ETP=-5*10^-5 +n=2 +F=96500 +dl_G=-(n*F*E) +disp(dl_G,'(in Jmol^-1)') +dl_S=n*F*d_ETP +disp,(dl_S,'(in JK^-1mol^-1)') +dl_H=dl_G+(T*dl_S) +disp(dl_H,'(in Jmol^-1)') + diff --git a/3428/CH15/EX9.15.16/Ex9_15_16.sce b/3428/CH15/EX9.15.16/Ex9_15_16.sce new file mode 100644 index 000000000..e0f1ca17d --- /dev/null +++ b/3428/CH15/EX9.15.16/Ex9_15_16.sce @@ -0,0 +1,7 @@ +//Section-9,Example-2,Page no.-E.20 +//To find the value of the standard reduction potential for the given electrode. +clc; +E0_cell=-0.022 +E0_SCE=0.244 +E0_A=E0_cell+E0_SCE +disp(E0_A,'Standard electrode potential for Ag/AgCl electrode(V)') diff --git a/3428/CH15/EX9.15.17/Ex9_15_17.sce b/3428/CH15/EX9.15.17/Ex9_15_17.sce new file mode 100644 index 000000000..cef6ee3cc --- /dev/null +++ b/3428/CH15/EX9.15.17/Ex9_15_17.sce @@ -0,0 +1,13 @@ +//Section-9,Example-1,Page no.-E.23 +//To determine the range of voltmeter to display changes of pH at given conditions. +clc; +E=0 +R=8.314 +T=298 +F=96500 +pH_1=1 +E1_bar=E+(((R*T*log(10))/F)*(7-pH_1)) +pH_7=14 +E2_bar=E+(((R*T*log(10))/F)*(7-pH_7)) +E_bar=E1_bar-E2_bar +disp(E_bar,'Required range of voltmeter(V)') diff --git a/3428/CH15/EX9.15.18/Ex9_15_18.sce b/3428/CH15/EX9.15.18/Ex9_15_18.sce new file mode 100644 index 000000000..ef7cbdb80 --- /dev/null +++ b/3428/CH15/EX9.15.18/Ex9_15_18.sce @@ -0,0 +1,8 @@ +//Section-9,Example-1,Page no.-E.32 +//To calculate emf of the given cell. +clc; +n=2 +C_2=0.1 +C_1=0.01 +E_cell=(0.0591/2)*(log10(C_2/C_1)) +disp(E_cell,'Emf of the given cell') diff --git a/3428/CH15/EX9.15.19/Ex9_15_19.sce b/3428/CH15/EX9.15.19/Ex9_15_19.sce new file mode 100644 index 000000000..bd75d53a1 --- /dev/null +++ b/3428/CH15/EX9.15.19/Ex9_15_19.sce @@ -0,0 +1,11 @@ +//Section-9,Example-2,Page no.-E.32 +//To find the valency of Mercurous ion with the help of given cell. +clc; +C_1=0.001 +C_2=0.01 +F=96500 +R=8.314 +T=291 +E_cell=0.029 +n=((2.303*R*T)/(E_cell*F))*log10(C_2/C_1) +disp(n,'valency of Mercurous ion') diff --git a/3428/CH15/EX9.15.2/Ex9_15_2.sce b/3428/CH15/EX9.15.2/Ex9_15_2.sce new file mode 100644 index 000000000..6937c8b8b --- /dev/null +++ b/3428/CH15/EX9.15.2/Ex9_15_2.sce @@ -0,0 +1,9 @@ +//Section-9,Example-2,Page no.-E.5 +//To calculate the potential of electrochemical cell at 25 degree celcius. +clc; +E0_cell=-0.34 +C_Cu=0.50 //concentration(Cu/Cu_2+) +P_H2=0.95 //pressure(H+/H_2) +H=0.01 //concentration(H+/H_2) +E_cell=E0_cell-((0.0591/2)*log10((C_Cu*P_H2)/H^2)) +disp(E_cell,'Potential of cell(V)') diff --git a/3428/CH15/EX9.15.20/Ex9_15_20.sce b/3428/CH15/EX9.15.20/Ex9_15_20.sce new file mode 100644 index 000000000..cfa48a3be --- /dev/null +++ b/3428/CH15/EX9.15.20/Ex9_15_20.sce @@ -0,0 +1,10 @@ +//Section-9,Example-3,Page no.-E.32 +//To determine whether the concentrations of two solutions becomes smaller or larger. +clc; +C_1=0.15 +C_2=1 +E0_cell=0.000 +n=2 +E_cell=E0_cell-(0.0591/n)*(log10((C_2)/(C_1))) +disp(E_cell,'Emf of cell') +//since E_cell is -ve,the cell discharges to the left direction. diff --git a/3428/CH15/EX9.15.21/Ex9_15_21.sce b/3428/CH15/EX9.15.21/Ex9_15_21.sce new file mode 100644 index 000000000..7e026273c --- /dev/null +++ b/3428/CH15/EX9.15.21/Ex9_15_21.sce @@ -0,0 +1,11 @@ +//Section-9,Example-4,Page no.-E.39 +//To find the energy obtainable from lead storage battery in which given amount of lead is consumed. +clc; +E0_cell=2.01 +n=2 +C_H=20 +C_SO4=10 +E_cell=E0_cell-((0.0592/2)*log10(1/((C_H^4)*(C_SO4^2)))) +q=0.100*2*96500 +E=q*E_cell +disp(E,'Energy obtained(kJ)') diff --git a/3428/CH15/EX9.15.22/Ex9_15_22.sce b/3428/CH15/EX9.15.22/Ex9_15_22.sce new file mode 100644 index 000000000..3689f6cff --- /dev/null +++ b/3428/CH15/EX9.15.22/Ex9_15_22.sce @@ -0,0 +1,7 @@ +//Section-9,Example-1,Page no.-E.47 +//To calculate the time required to deposit 2 gm copper from the solution of copper sulphate +clc; +Q=(96500/32)*2 //charge deposited by 2 gm copper. +I=5 +t=Q/I //time in seconds +disp(t,'Time required for deposition') diff --git a/3428/CH15/EX9.15.23/Ex9_15_23.sce b/3428/CH15/EX9.15.23/Ex9_15_23.sce new file mode 100644 index 000000000..eecf7ef33 --- /dev/null +++ b/3428/CH15/EX9.15.23/Ex9_15_23.sce @@ -0,0 +1,7 @@ +//Section-9,Example-2,Page no.-E.48 +//To calculate the thickness of silver deposited. +I=0.2 +t=3*60*60 +Q=(107.92/96500)*2160 //Charge deposited by 2160C Ag +a=Q/840 +disp(a,'Thickness of silver deposited(cm)') diff --git a/3428/CH15/EX9.15.24/Ex9_15_24.sce b/3428/CH15/EX9.15.24/Ex9_15_24.sce new file mode 100644 index 000000000..b441837e2 --- /dev/null +++ b/3428/CH15/EX9.15.24/Ex9_15_24.sce @@ -0,0 +1,13 @@ +//Section-9,Example-1,Page no.-E.51 +//To calculate the ionic mobility of K+ ions. +clc; +l=0.04 +t=4000 +I=6*10^-3 +A=0.3*10^-4 +k=1.0 +v=l/t //Velocity of the ion(ms^-1) +F_s=I/(A*k) //Field strength(Vm^-1) +I_mo=v/F_s +disp(I_mo,'Ionic mobility of K+ ion(m^2V^-1s^-1)') + diff --git a/3428/CH15/EX9.15.25/Ex9_15_25.sce b/3428/CH15/EX9.15.25/Ex9_15_25.sce new file mode 100644 index 000000000..ad38f7946 --- /dev/null +++ b/3428/CH15/EX9.15.25/Ex9_15_25.sce @@ -0,0 +1,10 @@ +//Section-9,Example-2,Page no.-E.52 +//To calculate the transport number of hydrogen ions. +clc; +M_Ag=0.1209 +Q=M_Ag/108 +A=1.24 +dx=7.5 +C=0.1 +t_H=(A*dx*C)/(Q*1000) +disp(t_H,'transport number of hydrogen ions') diff --git a/3428/CH15/EX9.15.26/Ex9_15_26.sce b/3428/CH15/EX9.15.26/Ex9_15_26.sce new file mode 100644 index 000000000..7b987455a --- /dev/null +++ b/3428/CH15/EX9.15.26/Ex9_15_26.sce @@ -0,0 +1,9 @@ +//Section-9,Example-1,Page no.-E.56 +//To calculate the transport number of silver and nitrate ions. +clc; +u_1=0.916 //u_Ag+/u_NO3- +u_2=u_1+1 //(u_NO3-/(u_Ag+ + u_NO3-)) +t_no=1/u_2 +disp(t_no,'Transport no. of nitrate ions') +t_Ag=1-t_no +disp(t_no,'Transport no. of silver ions') diff --git a/3428/CH15/EX9.15.27/Ex9_15_27.sce b/3428/CH15/EX9.15.27/Ex9_15_27.sce new file mode 100644 index 000000000..c82a7ba6a --- /dev/null +++ b/3428/CH15/EX9.15.27/Ex9_15_27.sce @@ -0,0 +1,7 @@ +//Section-9,Example-2,Page no.-E.57 +//To find the transport number of copper ion. +clc; +L=0.420 //Loss of Cu in anode compartment{=(Y-X)} +W=1.058 //Total weight of Cu deposited in voltmeter(=Z) +t_no=L/W +disp(t_no,'Transport no. of copper ions') diff --git a/3428/CH15/EX9.15.28/Ex9_15_28.sce b/3428/CH15/EX9.15.28/Ex9_15_28.sce new file mode 100644 index 000000000..2ef6f2ec3 --- /dev/null +++ b/3428/CH15/EX9.15.28/Ex9_15_28.sce @@ -0,0 +1,14 @@ +//Section-9,Example-3,Page no.-E.57 +//To calculate the transport number of Cu2+ and (SO4+)2- ions. +clc; +W_Ag=0.1351 +E_Ag=107.88 +E_Cu=63.6/2 +W_Cu=(W_Ag/E_Ag)*E_Cu //Total weight of copper deposited in voltmeter +Y=0.6350 +X=0.6236 +L=Y-X //Loss in weight of Cu in anodic solution(gm) +t_no1=L/W_Cu +disp(t_no1,'Transport number of Cu2+ ions') +t_no2=1-t_no1 +disp(t_no2,'Transport number of (SO4+)2- ions') diff --git a/3428/CH15/EX9.15.29/Ex9_15_29.sce b/3428/CH15/EX9.15.29/Ex9_15_29.sce new file mode 100644 index 000000000..6bb5ce6c2 --- /dev/null +++ b/3428/CH15/EX9.15.29/Ex9_15_29.sce @@ -0,0 +1,15 @@ +//Section-9,Example-4,Page no.-E.57 +//To calculate the transport number of H+ and Cl- ions. +clc; +Cl_1=0.175 //Mass of Cl- ions before electrolysis +M_Cb=20.175 //Mass of cathode solution before electrolysis +Cl_2=0.146 //Mass of Cl- ions after electrolysis +M_Ca=18.466 //Mass of cathode solution after electrolysis +M_b=M_Cb-Cl_1 //Mass of water before electrolysis +M_a=M_Ca-Cl_2 //Mass of water after electrolysis +M_1=(M_a*Cl_1)/M_b +L=(M_1-Cl_2) +t_no1=(L/(0.2508*(35.5/108))) +disp(t_no1,'Transport number of Cl- ions') +t_no2=1-t_no1 +disp(t_no2,'Transport number of H+ ions') diff --git a/3428/CH15/EX9.15.3/Ex9_15_3.sce b/3428/CH15/EX9.15.3/Ex9_15_3.sce new file mode 100644 index 000000000..a5fefa649 --- /dev/null +++ b/3428/CH15/EX9.15.3/Ex9_15_3.sce @@ -0,0 +1,8 @@ +//Section-9,Example-3,Page no.-E.6 +//To determine the concentration of Cd2+ ions in the given electrochemical cell. +E=-0.02 +E_0=0.04 +n=2 +C_Fe=0.1 +x=C_Fe/(10^(n*(E_0-E))/(0.0591)) +disp(x,'Concentration of Cd2+ ions in the given electrochemical cell(M)') diff --git a/3428/CH15/EX9.15.4/Ex9_15_4.sce b/3428/CH15/EX9.15.4/Ex9_15_4.sce new file mode 100644 index 000000000..8cfe7d0db --- /dev/null +++ b/3428/CH15/EX9.15.4/Ex9_15_4.sce @@ -0,0 +1,11 @@ +//Section-9,Example-4,Page no.-E.6 +//To calcuate the pH of unknown solution. +clc; +R=8.314 +T=298 +F=96500 +E=0.4188 +E_ref=0.2415 +pH=(E-E_ref)/((2.303*R*T)/F) +disp(pH,'pH of the unknown solution') + diff --git a/3428/CH15/EX9.15.5/Ex9_15_5.sce b/3428/CH15/EX9.15.5/Ex9_15_5.sce new file mode 100644 index 000000000..5b6c16da4 --- /dev/null +++ b/3428/CH15/EX9.15.5/Ex9_15_5.sce @@ -0,0 +1,7 @@ +//Section-9,Example-1,Page no.-E.8 +//To predict whether the reaction is spontaneous or not. +E_01=1.23 //E_0(H+,O_2,H_2O) +E_02=-0.44 //E_0(Fe2+,Fe) +E_0=E_01-E_02 +disp(E_0,'E_0 for the given cell(V)') +//Since E_0 >0,it follows that the reaction is spontaneous. diff --git a/3428/CH15/EX9.15.6/Ex9_15_6.sce b/3428/CH15/EX9.15.6/Ex9_15_6.sce new file mode 100644 index 000000000..b20573d12 --- /dev/null +++ b/3428/CH15/EX9.15.6/Ex9_15_6.sce @@ -0,0 +1,18 @@ +//Section-9,Example-2,Page no.-E.9 +//To find K_eq for the given reaction. +clc; +E0_Ag=0.80 +E0_Cu=0.34 +E0=E0_Ag-E0_Cu //E0_cell in volt +n=2 +F=96500 +R=8.314 +T=298 +K=(n*F*E0)/(R*T) +//K_eq=antilog(K) +K_eq=%e^K +disp(K_eq,'K_eq for the given reaction') +//Answer in the book is wrong. + + + diff --git a/3428/CH15/EX9.15.7/Ex9_15_7.sce b/3428/CH15/EX9.15.7/Ex9_15_7.sce new file mode 100644 index 000000000..a465bdd96 --- /dev/null +++ b/3428/CH15/EX9.15.7/Ex9_15_7.sce @@ -0,0 +1,12 @@ +//Section-9,Example-3,Page no.-E.9 +//To calculate the equilibrium constant for the disproponation reaction. +clc; +E0=0.52-0.16 +R=8.314 +T=298 +n=1 +F=96500 +K=(n*F*E0)/(R*T) +//K_eq=antilog(K) +K_eq=%e^K +disp(K_eq,'Equilibrium constant') diff --git a/3428/CH15/EX9.15.8/Ex9_15_8.sce b/3428/CH15/EX9.15.8/Ex9_15_8.sce new file mode 100644 index 000000000..b7020b3bb --- /dev/null +++ b/3428/CH15/EX9.15.8/Ex9_15_8.sce @@ -0,0 +1,14 @@ +//Section-9,Example-4,Page no.-E.9 +//To calculate the equilibrium constant for the reaction. +clc; +E0_Sn=-0.14 +E0_Pb=-0.13 +E0=E0_Sn-E0_Pb +n=2 +F=96500 +R=8.314 +T=298 +K=(n*F*E0)/(R*T) +//K_eq=antilog(K) +K_eq=%e^K +disp(K_eq,'equilibrium constant for the reaction') diff --git a/3428/CH15/EX9.15.9/Ex9_15_9.sce b/3428/CH15/EX9.15.9/Ex9_15_9.sce new file mode 100644 index 000000000..4533305c8 --- /dev/null +++ b/3428/CH15/EX9.15.9/Ex9_15_9.sce @@ -0,0 +1,14 @@ +//Section-9,Example-5,Page no.-E.10 +//To calculate the equilibrium constant for the reaction. +clc; +E0_Ri=-0.21 +E0_CH=-0.60 +E0=E0_Ri-E0_CH +n=2 +F=96500 +R=8.314 +T=298 +K=(n*F*E0)/(R*T) +//K_eq=antilog(K) +K_eq=%e^K +disp(K_eq,'equilibrium constant for the reaction') |