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clc
clear
//Input data
v=1;//The volume of a gas in cc
d=13.6;//The density of mercury in g/cm^3
p2=10^-7;//The pressure in cm of Hg
g=980;//Gravitational constant in gms/s^2
p1=76;//The pressure in cm of Hg
R=8.31*10^7;//The Universal gas constant in ergs/g mol-K
N=6.023*10^23;//The Avogadro number
T=273;//The temperature at N.T.P in K
n1=2.7*10^19;//The number of molecules per cc of gas at N.T.P
t2=0;//The given temperature in degree centigrade
t3=39;//The given temperature in degree centigrade
//Calculations
P1=p1*g*d;//The given pressure in dynes/cm^2
P2=p2*g*d;//The given pressure in dynes/cm^2
n2=n1*(P2/P1);//The number of molecules per cc of the gas at 0 degree centigrade
T2=t2+273;//The given temperature in K
T3=t3+273;//The given temperature in K
n3=n2*(T2/T3);//The number of molecules per cc of the gas at 398 degree centigrade
//Output
printf('The number of molecules per cc of the gas , \n (1)at 0 degree centigrade and 10^-6 mm pressure of mercury is n2 = %3.4g \n (2)at 39 degree centigrade and 10^-6 mm pressure of mercury is n3 = %3.4g',n2,n3)
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