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//To calculate the number of molecules in each cubic metre
//Example 24.3
clear;
clc;
p=1.0*10^5;//pressure in N/m^2
v=1;//volume in cubic metre
t=300;//temperature in Kelvin
k=1.38*10^-23;//boltzmann constant(J/K)
n=p*v/(k*t);//formula for finding number of molecules
printf("number of molecule=%f*10^25",n/(10^25));
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