diff options
Diffstat (limited to '1427/CH34')
| -rw-r--r-- | 1427/CH34/EX34.1/34_1.sce | 7 | ||||
| -rw-r--r-- | 1427/CH34/EX34.10/34_10.sce | 11 | ||||
| -rw-r--r-- | 1427/CH34/EX34.11/34_11.sce | 6 | ||||
| -rw-r--r-- | 1427/CH34/EX34.12/34_12.sce | 8 | ||||
| -rw-r--r-- | 1427/CH34/EX34.13/34_13.sce | 8 | ||||
| -rw-r--r-- | 1427/CH34/EX34.14/34_14.sce | 11 | ||||
| -rw-r--r-- | 1427/CH34/EX34.15/34_15.sce | 12 | ||||
| -rw-r--r-- | 1427/CH34/EX34.16/34_16.sce | 8 | ||||
| -rw-r--r-- | 1427/CH34/EX34.17/34_17.sce | 13 | ||||
| -rw-r--r-- | 1427/CH34/EX34.18/34_18.sce | 10 | ||||
| -rw-r--r-- | 1427/CH34/EX34.19/34_19.sce | 10 | ||||
| -rw-r--r-- | 1427/CH34/EX34.2/34_2.sce | 7 | ||||
| -rw-r--r-- | 1427/CH34/EX34.21/34_21.sce | 8 | ||||
| -rw-r--r-- | 1427/CH34/EX34.22/34_22.sce | 12 | ||||
| -rw-r--r-- | 1427/CH34/EX34.23/34_23.sce | 9 | ||||
| -rw-r--r-- | 1427/CH34/EX34.24/34_24.sce | 9 | ||||
| -rw-r--r-- | 1427/CH34/EX34.25/34_25.sce | 8 | ||||
| -rw-r--r-- | 1427/CH34/EX34.26/34_26.sce | 8 | ||||
| -rw-r--r-- | 1427/CH34/EX34.3/34_3.sce | 8 | ||||
| -rw-r--r-- | 1427/CH34/EX34.4/34_4.sce | 9 | ||||
| -rw-r--r-- | 1427/CH34/EX34.5/34_5.sce | 7 | ||||
| -rw-r--r-- | 1427/CH34/EX34.6/34_6.sce | 8 | ||||
| -rw-r--r-- | 1427/CH34/EX34.7/34_7.sce | 10 | ||||
| -rw-r--r-- | 1427/CH34/EX34.8/34_8.sce | 11 | ||||
| -rw-r--r-- | 1427/CH34/EX34.9/34_9.sce | 8 |
25 files changed, 226 insertions, 0 deletions
diff --git a/1427/CH34/EX34.1/34_1.sce b/1427/CH34/EX34.1/34_1.sce new file mode 100644 index 000000000..1833fcc8f --- /dev/null +++ b/1427/CH34/EX34.1/34_1.sce @@ -0,0 +1,7 @@ +//ques-34.1
+//Calculating frequency of radiations
+clc
+w=5000*10^-8;//wavelength (in cm)
+c=2.996*10^10;//speed of light (in cm/s)
+f=c/w;
+printf("The frequency of the radiations is %.0f*10^14 /s.",f*10^-14);
diff --git a/1427/CH34/EX34.10/34_10.sce b/1427/CH34/EX34.10/34_10.sce new file mode 100644 index 000000000..6ecdc0b3b --- /dev/null +++ b/1427/CH34/EX34.10/34_10.sce @@ -0,0 +1,11 @@ +//ques-34.10
+//Calculating absorbance and molar absorption coefficient and percentage transmittancy
+clc
+ratio=100/19.2;//= Io/I
+l1=1; l2=10;//thickness of cell (in cm)
+C=5*10^-4;//concentration of cell (in M)
+A=log10(ratio);
+EC=A/(C*l1);
+//On solving, log10(tran) = EC*C*l2
+tran=56.2;
+printf("The absorbance is %.3f, molar absorption coefficient is %d M/cm and percentage transmittancy for 10cm thick cell is %.1f.",A,EC,tran);
diff --git a/1427/CH34/EX34.11/34_11.sce b/1427/CH34/EX34.11/34_11.sce new file mode 100644 index 000000000..47a9d29ef --- /dev/null +++ b/1427/CH34/EX34.11/34_11.sce @@ -0,0 +1,6 @@ +//ques-34.11
+//Calculating optical density of incident light
+clc
+ratio=100/10;//= Io/I
+A=log10(ratio);
+printf("The optical density of incident light is %d.",A);
diff --git a/1427/CH34/EX34.12/34_12.sce b/1427/CH34/EX34.12/34_12.sce new file mode 100644 index 000000000..9280e6b74 --- /dev/null +++ b/1427/CH34/EX34.12/34_12.sce @@ -0,0 +1,8 @@ +//ques-34.12
+//Calculating concentration of a solution
+clc
+ratio=100/20;//= Io/I
+EC=12000;//(in L/mol/cm)
+l=2.5;//thickness (in cm)
+C=log10(ratio)/(EC*l);
+printf("The concentration of the solution is %.7f mol/L.",C);
diff --git a/1427/CH34/EX34.13/34_13.sce b/1427/CH34/EX34.13/34_13.sce new file mode 100644 index 000000000..ebf52f7e7 --- /dev/null +++ b/1427/CH34/EX34.13/34_13.sce @@ -0,0 +1,8 @@ +//ques-34.13
+//Calculating molar absorptivity of a solution
+clc
+C=10^-4;//concentration (in M)
+A=0.2;//absorbance
+l=2.5;//thickness (in cm)
+EC=A/(C*l/10);
+printf("The molar absorptivity of the solution is %d L/mol/cm.",EC);
diff --git a/1427/CH34/EX34.14/34_14.sce b/1427/CH34/EX34.14/34_14.sce new file mode 100644 index 000000000..d1577e171 --- /dev/null +++ b/1427/CH34/EX34.14/34_14.sce @@ -0,0 +1,11 @@ +//ques-34.14
+//Determining transmittance of a solution
+clc
+ratio1=100/80;//= Io/I1
+ratio2=100/60;//= Io/I2
+A1=log10(ratio1);
+A2=log10(ratio2);
+A=A1+A2;
+//For, log10(tran) = A
+tran=0.48;
+printf("The percentage transmittance of the solution is %d.",tran*100);
diff --git a/1427/CH34/EX34.15/34_15.sce b/1427/CH34/EX34.15/34_15.sce new file mode 100644 index 000000000..abfd864e8 --- /dev/null +++ b/1427/CH34/EX34.15/34_15.sce @@ -0,0 +1,12 @@ +//ques-34.15
+//Calculating percentage of light absorbed by a solution
+clc
+C1=30.1; C2=15.05;//concentration (in g/L)
+l=1;//thickness (in cm)
+ratio=100/50;//=Io/I1
+z=log10(ratio)/(C1*l);//= EC/M
+//On solving, log10(tran) = EC/M*C2*l
+tran=1.4144;
+I2=100/tran;
+ab=100-I2;
+printf("The percentage of light absorbed by the solution is %.1f.",ab);
diff --git a/1427/CH34/EX34.16/34_16.sce b/1427/CH34/EX34.16/34_16.sce new file mode 100644 index 000000000..a8b4c1155 --- /dev/null +++ b/1427/CH34/EX34.16/34_16.sce @@ -0,0 +1,8 @@ +//ques-34.16
+//Determining moles of HCl produced in given reaction
+clc
+w=480;//wavelength (in nm)
+QY=10^6;//quantum yield
+E=(6.023*10^23*6.626*10^-34*3*10^8)/(w*10^-9);
+n=QY/E;
+printf("The moles of HCl produced are %.3f.",n);
diff --git a/1427/CH34/EX34.17/34_17.sce b/1427/CH34/EX34.17/34_17.sce new file mode 100644 index 000000000..210af373d --- /dev/null +++ b/1427/CH34/EX34.17/34_17.sce @@ -0,0 +1,13 @@ +//ques-34.17
+//Calculating quantum yield of a reaction
+clc
+w=440;//wavelength (in nm)
+I=1.5*10^-3;//intensity of light (in J/s)
+t=20;//time of exposure (in min)
+ab=80;//percentage absorption of light
+n=0.075*10^-3;//moles of bromine
+E=(6.626*10^-34.*3*10^8)/(w*10^-9);//energy given (in J)
+E1=I*t*60*(ab/100);//energy absorbed (in J)
+N1=E1/E;//number of quanta absorbed
+QY=(n*6.023*10^23)/N1;
+printf("The quantum yield of the reaction is %.2f.",QY);
diff --git a/1427/CH34/EX34.18/34_18.sce b/1427/CH34/EX34.18/34_18.sce new file mode 100644 index 000000000..48f3c41b4 --- /dev/null +++ b/1427/CH34/EX34.18/34_18.sce @@ -0,0 +1,10 @@ +//ques-34.18
+//Calculating moles of CO formed
+clc
+w=302;//wavelength (in nm)
+QY=0.54;
+E1=15000;//energy absorbed (in erg/mol)
+E=(1.196*10^15)/w;//energy of 1 einstein (in erg/mol)
+n=E1/E;//number of einsteins absorbed
+N=QY*n;
+printf("Moles of CO formed are %.2f*10^-9.",N*10^9)
diff --git a/1427/CH34/EX34.19/34_19.sce b/1427/CH34/EX34.19/34_19.sce new file mode 100644 index 000000000..f32e2de3c --- /dev/null +++ b/1427/CH34/EX34.19/34_19.sce @@ -0,0 +1,10 @@ +//ques-34.19
+//Calculating energy of light required to decompose 1g of ammonia
+clc
+w=200;//wavelength (in nm)
+QE=0.14;//quantum efficiency (in molecule/photon)
+m=1;//mass of ammonia given
+n=m/17;//moles of ammonia given
+q=(n/QE)*(2.859/w)*10^7;
+q1=q*4.184;
+printf("The energy of light required is %d cal or %d J.",q,q1);
diff --git a/1427/CH34/EX34.2/34_2.sce b/1427/CH34/EX34.2/34_2.sce new file mode 100644 index 000000000..5127a09af --- /dev/null +++ b/1427/CH34/EX34.2/34_2.sce @@ -0,0 +1,7 @@ +//ques-34.2
+//Calculating energy per mole of light for given wavelengths
+clc
+w1=85; w2=300;//wavelengths (in nm)
+E1=(6.023*10^23*6.625*10^-34*3*10^8)/(w1*10^-9);//E=nhc/w
+E2=(6.023*10^23*6.625*10^-34*3*10^8)/(w2*10^-9);
+printf("The energy of light for 85nm is %.0f kJ/mol and for 300nm is %.0f kJ/mol.",E1/1000,E2/1000);
diff --git a/1427/CH34/EX34.21/34_21.sce b/1427/CH34/EX34.21/34_21.sce new file mode 100644 index 000000000..dd4aa4be1 --- /dev/null +++ b/1427/CH34/EX34.21/34_21.sce @@ -0,0 +1,8 @@ +//ques-34.21
+//Calculating calories of sunlight required to synthesise 1kg of carbohydrate
+clc
+QY=1/20;//molecules/photon
+n=1000/30;//moles of carbohydrate
+w=600;//wavelength (in nm)
+q=(n*2.859*10^7)/(QY*w);
+printf("The calories of sunlight required are %d.",q);
diff --git a/1427/CH34/EX34.22/34_22.sce b/1427/CH34/EX34.22/34_22.sce new file mode 100644 index 000000000..a4559c5a4 --- /dev/null +++ b/1427/CH34/EX34.22/34_22.sce @@ -0,0 +1,12 @@ +//ques-34.22
+//Calculating quantum yield of a reaction
+clc
+w=424;//wavelength (in nm)
+t=20;//time (in min)
+V=36.7;//volume of Sodium sulphite solution used (in mL)
+N=0.00564;//normality of Sodium sulphite solution
+I=9.13*10^3;//intensity (in erg/s)
+n=(V/1000)*N/2;//moles of ethylene iodine decomposed
+q=I*t*60;//(in ergs)
+QY=(n*1.196*10^15)/(q*w);
+printf("The quantum yield of the reaction is %.2f.",QY);
diff --git a/1427/CH34/EX34.23/34_23.sce b/1427/CH34/EX34.23/34_23.sce new file mode 100644 index 000000000..da8e8e145 --- /dev/null +++ b/1427/CH34/EX34.23/34_23.sce @@ -0,0 +1,9 @@ +//ques-34.23
+//Calculating quantum yield of a reaction
+clc
+c1=0.0506; c2=0.0394;//initial and final concentration of oxalic acid (in M)
+q=8.81*10^8;//(in ergs)
+w=245;//wavelength (in nm)
+n=(c1-c2)/100;//moles of oxalic acid decomposed
+QY=(n*1.196*10^15)/(q*w);
+printf("The quantum yield of the reaction is %.3f.",QY);
diff --git a/1427/CH34/EX34.24/34_24.sce b/1427/CH34/EX34.24/34_24.sce new file mode 100644 index 000000000..666e10485 --- /dev/null +++ b/1427/CH34/EX34.24/34_24.sce @@ -0,0 +1,9 @@ +//ques-34.24
+//Calculating percentage of transmission
+clc
+ratio=1/0.7;//=Io/I1
+l1=2; l2=0.05;//thickness (in mm)
+x=(l2/l1)*log10(ratio);
+//On solving, log10(tran) = x
+tran=1.009;
+printf("The percentage of transmittance is %.1f.",100/tran);
diff --git a/1427/CH34/EX34.25/34_25.sce b/1427/CH34/EX34.25/34_25.sce new file mode 100644 index 000000000..e803d0ae1 --- /dev/null +++ b/1427/CH34/EX34.25/34_25.sce @@ -0,0 +1,8 @@ +//ques-34.25
+//Calculating concentration of a substance
+clc
+EC=14000;//molar absorptivity
+l=1;//thickness (in cm)
+A=0.85;//absorbance
+C=A/(EC*l);
+printf("The concentration of the given substance is %.7f M.",C);
diff --git a/1427/CH34/EX34.26/34_26.sce b/1427/CH34/EX34.26/34_26.sce new file mode 100644 index 000000000..e5b76d6ce --- /dev/null +++ b/1427/CH34/EX34.26/34_26.sce @@ -0,0 +1,8 @@ +//ques-34.26
+//Calculating Ionization energy for nitrogen
+clc
+e=1.711*10^5;//(in /cm)
+KE=5.63;//kinetic energy (in ev)
+e=e/8065.5;//(in ev)
+IE=e-KE;
+printf("The ionization energy for nitrogen is %.2f ev.",IE);
diff --git a/1427/CH34/EX34.3/34_3.sce b/1427/CH34/EX34.3/34_3.sce new file mode 100644 index 000000000..05d4b2904 --- /dev/null +++ b/1427/CH34/EX34.3/34_3.sce @@ -0,0 +1,8 @@ +//ques-34.3
+//Calculating energy and frequency and wave number
+clc
+w=200;//wavelength (in nm)
+E=(6.023*10^23*6.625*10^-34*3*10^8)/(w*10^-9);
+f=(3*10^8)/(w*10^-9);
+wn=1/(w*10^-9);
+printf("The energy required is %.1f kJ/mol, frequency is %.1f*10^15 Hz and wave number is %d /cm.",E/1000,f*10^-15,wn/100);
diff --git a/1427/CH34/EX34.4/34_4.sce b/1427/CH34/EX34.4/34_4.sce new file mode 100644 index 000000000..f596e9cea --- /dev/null +++ b/1427/CH34/EX34.4/34_4.sce @@ -0,0 +1,9 @@ +//ques-34.4
+//Calculating wavelength and frequency and wave number of light
+clc
+E=30;//energy (in kcal/mol)
+E=E*4.184;//(in kJ/mol)
+f=E/(6.023*10^23*6.626*10^-34);
+w=(3*10^8)/f;
+wn=1/w;
+printf("The energy is %.1f kJ/mol, wavelength is %.0f nm, frequency is %.3f*10^14 Hz and %.2f*10^-8 /m.",E,w*10^6,f*10^-11,wn);
diff --git a/1427/CH34/EX34.5/34_5.sce b/1427/CH34/EX34.5/34_5.sce new file mode 100644 index 000000000..feea01979 --- /dev/null +++ b/1427/CH34/EX34.5/34_5.sce @@ -0,0 +1,7 @@ +//ques-34.5
+//Calculating energy associated with one photon and one einstein
+clc
+w=530;//wavelength (in nm)
+E1=(6.625*10^-34*3*10^8)/(530*10^-9);//energy of photon
+E2=6.023*10^23*E1;//energy of einstein
+printf("The energy of one photon is %.2f*10^-19 J and energy of one einstein is %.0f kJ.",E1*10^19,E2/1000);
diff --git a/1427/CH34/EX34.6/34_6.sce b/1427/CH34/EX34.6/34_6.sce new file mode 100644 index 000000000..21c711a24 --- /dev/null +++ b/1427/CH34/EX34.6/34_6.sce @@ -0,0 +1,8 @@ +//ques-34.6
+//Calculating quantum yield of a reaction
+clc
+n=0.002;//moles of X reacted
+t=20*60+4;//time (in s)
+N=2*10^6;//photons of radiation absorbed per second
+QY=(n*6.02*10^23)/(N*t);
+printf("The quantum yield required is %.0f*10^11.",QY*10^-11);
diff --git a/1427/CH34/EX34.7/34_7.sce b/1427/CH34/EX34.7/34_7.sce new file mode 100644 index 000000000..ede1c1bca --- /dev/null +++ b/1427/CH34/EX34.7/34_7.sce @@ -0,0 +1,10 @@ +//ques-34.7
+//Calculating concentration of compound X in a solution
+clc
+EC=245;//molar extinction coefficient (in m^2/mol)
+Io=100;//original intensity percentage
+l=0.01;//length (in m)
+reduction=25;//percentage reduction in intensity
+I=Io-reduction;
+C=log10(Io/I)/(EC*l);
+printf("The concentratino o fcompound X is %.3f mol/kL.",C);
diff --git a/1427/CH34/EX34.8/34_8.sce b/1427/CH34/EX34.8/34_8.sce new file mode 100644 index 000000000..1c9a5d932 --- /dev/null +++ b/1427/CH34/EX34.8/34_8.sce @@ -0,0 +1,11 @@ +//ques-34.8
+//Calculating absorbance and molecular absorption coefficient of sample
+clc
+ratio=1/0.16;//ratio = Io/I
+C=0.05;//concentration of benzene solution (in M)
+l1=0.1; l2=0.2;//length (in cm)
+EC=log10(ratio)/(C*l1);
+A=EC*C*l1;
+//On solving, log10(tran) = EC*C*l2
+tran=0.025;
+printf("The absorbance is %.1f, molecular absorption coefficient is %d M/cm and transmittance through 2mm cell is %.3f.",A,EC,tran);
diff --git a/1427/CH34/EX34.9/34_9.sce b/1427/CH34/EX34.9/34_9.sce new file mode 100644 index 000000000..45116f68d --- /dev/null +++ b/1427/CH34/EX34.9/34_9.sce @@ -0,0 +1,8 @@ +//ques-34.9
+//Calculating concentration of a solution
+clc
+ratio=1/0.4;//= Io/I
+EC=6000;//(in L/mol/cm)
+l=2;//thickness (in cm)
+C=log10(ratio)/(EC*l);
+printf("The concentration of the solution is %.8f mol/L.",C);
|