Question

#include <iostream>
#include<cmath>
using namespace std;

int main()
{
float R = 8.314; // ideal gas constant in J/(mole-K)
float F = 81;
float C = (F-32)*5/9;
float T = C + 273;
cout << " 70 degree F = " << T << endl;
  
double P = 13600*(30*2.54/1000)*9.81; // P density*g*h
cout << " P : " << P << " Pascal " << '\n';
  
double V = 10*10*5; // volume in m^3
double k_B = 1.38E-23; // Boltzmann Constant
double N = P*V/(k_B*T);
cout << " # of gas molecules : " << N << "\n";
float n = N*k_B/R;
  
cout << " # of moles here : " << n << 'n';
  
float m = 28*1.6E-27; // N_2 is 28 atomic mass unit
float Nm = N*m;
  
cout << " Total mass of gas molecules : " << Nm << " kg " << '\n';
  
double v_rms = sqrt(3*k_B*T/m);
cout << " Average speed of N2 : " << v_rms << '\n'; // in m/s
  
float v_rms_MPH = (v_rms*3600/(2.54*1000));
cout << " in MPH v_rms : " << v_rms_MPH << '\n';

// Write a program to obtain v_rms at 100F

// Calculate v_rms for T = Highest Temp recorded in Manhattan in last 5 yers
// as for example could be 100 F

please us C++ TO PROGRAMING

Answer 1

Just modified from provided code

Code prompts user to enter Temperature in Fahrenheit then Calculate v_rms

If any modifications needed use comment section

#include <iostream>
#include<cmath>
using namespace std;

int main()
{
float R = 8.314; // ideal gas constant in J/(mole-K)
float F;
cout<<"Enter Temperature in Fahrenheit: ";
cin>>F;
float C = (F-32)*5/9;
float T = C + 273;
cout <<" "<< F<<" degree F = " << T << endl;

double P = 13600*(30*2.54/1000)*9.81; // P density*g*h
cout << " P : " << P << " Pascal " << '\n';

double V = 10*10*5; // volume in m^3
double k_B = 1.38E-23; // Boltzmann Constant
double N = P*V/(k_B*T);
cout << " # of gas molecules : " << N << "\n";
float n = N*k_B/R;

cout << " # of moles here : " << n << 'n';

float m = 28*1.6E-27; // N_2 is 28 atomic mass unit
float Nm = N*m;

cout << " Total mass of gas molecules : " << Nm << " kg " << '\n';

double v_rms = sqrt(3*k_B*T/m);
cout << " Average speed of N2 : " << v_rms << '\n'; // in m/s

float v_rms_MPH = (v_rms*3600/(2.54*1000));
cout << " in MPH v_rms : " << v_rms_MPH << '\n';
}